Laboratory fume cupboard

The invention relates to a laboratory fume cupboard ( 100 ) comprising, connected in a moveable manner with a laboratory housing ( 60 ), a sash ( 30 ) for opening and closing a fume cupboard interior, in which between the sash ( 30 ) and a side post ( 10 ) of the laboratory housing ( 60 ) an air opening ( 70 ) is provided which is designed for producing wall flows in the interior of the fume cupboard.

Ventilated enclosure with vortex baffle

A ventilated enclosure includes a vortex baffle to harness the turbulence of air in a way that uses less exhaust air while still providing ample protection to the user. The vortex ventilation system uses the total interior shape and proportion of the ventilated enclosure to direct the motion of air flow in a manner that improves efficiency. The vortex ventilation baffle can enhance the way air naturally curls, or rolls, as air flows through the enclosure. The vortex baffle can cause a mono-stable vortex to from in the enclosure. This vortex is resilient to disturbances that cause ventilated enclosures, such as chemical fume hoods, to spill. The stable vortex is above the work surface and less affected by the way apparatus is loaded inside the enclosure. The vortex baffle achieves better containment (improved safety) at lower exhaust flow (improved energy consumption) as compared to conventional ventilated enclosures.

Extractor Apparatus

The invention relates to an extractor apparatus (), in particular a laboratory extractor apparatus, with a working area () and with a fan arrangement () for generating an air flow () or an inlet opening for an air flow () for the removal of gases and/or particles from the working area () and with at least one surface bordering the working area (). The extractor apparatus () has charging means () for ionising the air flow () and/or for electrostatic charging of at least one surface. 1. An extractor apparatus with a working area and with a fan arrangement for generating an air flow or an inlet opening for an air flow for the removal of gases and/or particles from the working area and with at least one surface bordering the working area and further comprising charging means for ionising the air flow and/or for electrostatic charging of at least one surface.2. An extractor apparatus according to claim 1 , wherein the electrostatically chargeable surface or surfaces bounding the working area include(s) at least one side wall surface and/or a bottom surface provided for the placing of objects and/or an inner surface or outer surface of a support element or a air guidance profile.3. An extractor apparatus according to claim 1 , wherein the surface or surfaces has or have at least two zones claim 1 , electrically insulated from one another claim 1 , chargeable by the charging means with different electrical polarity.4. An extractor apparatus according to claim 3 , wherein the zone or zones include at least one working zone and at least one boundary zone encompassing the working zone.5. An extractor apparatus according to claim 1 , further comprising air guidance means to direct the air flow or part of the air flow along the surface or surfaces.6. An extractor apparatus according to claim 1 , wherein the working area is bounded at least partly by walls and/or is provided in the interior of a working chamber and/or a housing of the extractor apparatus and/or has a working ...

Laboratory Fume Hood System Having Recessed Heat Exchanger System

A laboratory fume hood system for cooling at least one laboratory device located in an interior work area comprises a heat exchanger system having a heat exchanger in thermal communication with a primary fluid loop containing chilled fluid and a secondary fluid loop containing a cooling fluid which is in thermal communication the laboratory device. The primary fluid loop is located behind the fume hood wall and not in the interior work area. 1. A laboratory fume hood system for cooling at least one laboratory device comprising:a laboratory fume hood having an interior work area containing said at least one laboratory device, said fume hood also having a fume hood wall;a heat exchanger system comprising a heat exchanger in thermal communication with a primary fluid loop and a secondary fluid loop, wherein the primary fluid loop comprises a chilled fluid, and said secondary fluid loop comprises a cooling fluid;wherein said secondary fluid loop has a pump for transmitting the cooling fluid through the secondary fluid loop to said at least one device and wherein said secondary fluid loop is in thermal communication said at least one laboratory device for cooling said at least one device;wherein said primary fluid loop is located behind said fume hood wall and not in said interior work area.2. The laboratory fume hood system of wherein said pump is located behind said fume hood wall and not in said interior work area.3. The laboratory fume hood system of wherein said pump is mounted to a rear surface of said fume hood wall facing away from the interior work area.4. The laboratory fume hood system of wherein said pump is mounted to a rear surface of a mounting panel secured to the fume hood wall.5. The laboratory fume hood system of wherein said primary fluid loop comprises a chilled fluid inlet to said heat exchanger and a chilled fluid outlet from said heat exchanger claim 1 , and wherein said chilled fluid inlet and chilled fluid outlet are mounted to a rear surface of ...

METHOD AND APPARATUS FOR OPERATING DUCTED FUMEHOODS WITH INCREASED ENERGY EFFICIENCY

A method for operating a ducted fumehood with increased energy efficiency, wherein the method comprises: 1. A method for operating a ducted fumehood with increased energy efficiency , wherein the method comprises:passing exhaust air from the ducted fumehood through a heat exchanger, and passing other air through the heat exchanger, so as transfer heat content from the exhaust air to the other air, or to transfer heat content from the other air to the exhaust air, so as to temperature-condition the other air.2. A method according to wherein the exhaust air from the ducted fumehood is passed through a filter before it is introduced into the heat exchanger as a filtered air line.3. A method according to wherein the other air comprises fresh air introduced into a building containing the ducted fumehood as a fresh air line.4. A method according to wherein the filtered air line and the fresh air line pass through the heat exchanger but do not communicate with one another.5. A method according to wherein the heat exchanger is configured to permit the transfer of heat energy from the filtered air line to the fresh air line and vice versa.6. A method according to wherein the heat exchanger comprises a first heat exchanger element interposed in the airflow of the filtered air line claim 3 , and a second heat exchanger element interposed in the airflow of the fresh air line claim 3 , and further wherein a fluid line connects the first heat exchanger element with the second heat exchanger element.7. A method according to wherein the heat exchanger comprises a heat pump claim 6 , and further wherein the fluid line comprises a refrigerant line filled with a refrigerant claim 6 , and further comprising a compressor for selectively compressing the refrigerant.8. A method according to further comprising a reversing valve disposed in the refrigerant line claim 7 , such that the heat exchanger comprises a reversible heat pump.9. A method according to wherein the reversible heat pump ...

FUME HOOD AIR CHANNELING DEVICE

In one embodiment, a laboratory fume hood equipment air channeling system may include a platform having a plurality of vertical air channels therethrough, support legs configured to hold the platform above the countertop work surface of a laboratory fume hood, and an air chamber formed beneath the platform. The platform may include a lattice of interconnected horizontal slats forming a plurality of vertical air channels through the platform. The platform may have sidewall surfaces, an upper surface, and a lower surface. The support legs may be attached to the platform to hold the platform above the countertop work surface of the laboratory fume hood. The countertop work surface and the lower surface of the platform may form the air chamber beneath the platform. The air chamber may be in fluid communication with the vertical air channels increasing air flow through the vertical air channels and increasing air flow horizontally from front to back of the laboratory fume hood along the countertop work surface. The air chamber being in fluid communication with the vertical air channels increases the air flow around all sides of one or more laboratory equipment located on the upper surface of the platform. The sidewall surfaces, the upper surface, and the lower surface of the platform with the vertical air channels may together define a bulk volume of the platform, the bulk volume having void space defined by the vertical air channels. In one example, the bulk volume comprises at least 70% void space. 1. A laboratory fume hood air channeling system comprising: a lattice of interconnected horizontal slats forming a plurality of vertical air channels through the platform;', 'an upper surface;', 'a lower surface; and, 'a platform comprisingsupport legs coupled to the platform, configured to hold the platform above a countertop work surface of the laboratory table fume hood,wherein the platform fits within the laboratory table fume hood and extends side to side and front to ...

INTEGRATED WORKPIECE POSITIONING SYSTEM WITH INTEGRAL FUME EXTRACTION SYSTEM

A workpiece positioning system integrated with a fume extraction device is provided. The system comprises a movable work surface assembly and a manifold. The work surface assembly includes a plurality of work surfaces and a plurality of ventilation ports. Each of the plurality of ventilation ports is disposed on each of the plurality of work surfaces to ventilate the corresponding work zone. The manifold is disposed below the work surface assembly and coupled to a duct system through which fumes produced during welding or cutting are to be transported to the fume extraction device. When a workpiece placed on a work surface is positioned for welding or cutting, the manifold is aligned and in fluid communication with the ventilation port corresponding to the work surface. 1. A workpiece positioning system integrated with a fume extraction device , the system comprising: a plurality of work surfaces on which workpieces are placed for welding or cutting,', 'at least one divider dividing the plurality of work surfaces into individual work surfaces for each of the plurality of work zones, and', 'a plurality of ventilation ports, each of the plurality of ventilation ports disposed on each of the plurality of work surfaces to ventilate a corresponding work zone;, 'a rotatably movable work surface assembly having a plurality of work zones, the work surface assembly including'}a stationary manifold disposed proximate to the work surface assembly and coupled to a duct system through which fumes produced during welding or cutting are to be transported to the fume extraction device;a motor that rotatably moves the work surface assembly; anda controller to generate command signals to control movement of the motor,wherein when the motor rotatably moves, in response to a command signal from the controller, the work surface assembly to a commanded position such that a first workpiece on a first work surface of the plurality of work surfaces is positioned for welding or cutting, the ...

Aseptic embodiment and process for aseptic preparation and storage of drugs and cosmetics in aseptic contained environment

The ASEPTIC EMBODIMENT is an invention which will store, allow mixing and preparation of aseptic products, and permit storage of the mixed or prepared product in an aseptic environment until administered to a patient or customer. The ASEPTIC EMBODIMENT is portable and can be easily relocated when needed. The ASEPTIC EMBODIMENT will provide satisfaction of USP <797> regulations and therefore benefit society by decreasing or eliminating contamination of products which should be stored, prepared and administered under aseptic conditions. End result, it will decrease healthcare costs. 1. An apparatus for the preparation of aseptic pharmaceutical products comprising:one or more product exposure chambers wherein injections can be prepared aseptically by use of gloves extending into product exposure chamberone or more product exposure chambers wherein injections can be prepared aseptically by use of two or more pairs of gloves extending into product exposure chamber where one pair is a back-up in case of tear or punctureone or more ante-chambers attached to product exposure chamber said ante-chamber having entrance from outer room area and entrance to ante-chamberfiltered clean air as described by USP <797> supplied to product exposure chamber(s) and ante-chamber(s) accordingly2. The apparatus as described in further comprising:meter means for controlling airflow into and out of product exposure chamber(s)meter means for controlling airflow into and out of ante-chamber(s)means for monitoring, adjusting and recording airflow into and out from all chamber(s)sealing means for sealing product exposure chamber(s) and ante-chamber(s) to each other3. The apparatus as described in further comprising:one or more of the ante-chambers having a temperature/humidity control systemmeans for monitoring, adjusting and recording temperature and humiditymeans for monitoring, adjusting and recording pressure within the chamber(s) and outside of the chamber(s)4. The apparatus as described in ...

WORK CABINET AND SHEET

A work cabinet includes a casing, an airflow adjuster, and a conveyer. The airflow adjuster is configured to adjust an airflow in an inner space of the casing. The conveyer is disposed in the casing and configured to convey a longitudinally continuous sheet so as to make the sheet pass below the inner space. 1. A work cabinet comprising:a casing;an airflow adjuster configured to adjust an airflow in an inner space of the casing; anda conveyer disposed in the casing and configured to convey a longitudinally continuous sheet so as to make the sheet pass below the inner space.2. The work cabinet according to claim 1 , wherein the casing comprises a wall surface with an opening for work.3. The work cabinet according to claim 1 , a first roll attached-detached portion to which and from which a supply roll to supply the sheet is attached and detached; and', 'a second roll attached-detached portion to which and from which a collection roll to collect the sheet is attached and detached after the sheet has passed below the inner space, and, 'wherein the casing comprises'}wherein the conveyer is configured to draw the sheet from the supply roll and wind the sheet that has passed below the inner space around the collection roll.4. The work cabinet according to claim 3 , wherein the conveyer comprises a drive device configured to rotate the collection roll.5. The work cabinet according to claim 4 ,wherein the collection roll is disposed in a case, andwherein the case is attached to and detached from the second roll attached-detached portion.6. The work cabinet according to claim 1 , further comprising a robot disposed in the inner space and comprising at least one robot arm to perform work.7. The work cabinet according to claim 6 , wherein the case comprises a table disposed above a conveyance path of the sheet within a movable range of the at least one robot arm.8. The work cabinet according to claim 1 , wherein the airflow adjuster is configured to maintain the inner space ...

DOWNDRAFT TABLE HAVING A WORKPIECE HOLDER FOR A WORKPIECE TO BE HELD

The invention relates to a downdraft table () having a workpiece holder () for a workpiece to be held, wherein the workpiece holder () is configured in a stationary manner, wherein a suction-extraction device () is arranged beneath and/or next to the workpiece holder (), said suction-extraction device () being used to discharge particles and/or gases downward in a waste air flow, wherein the suction-extraction device () is arranged around the workpiece holder () with respect to the latter and is configured to be rotatable about the workpiece holder (). 1. A downdraft table with a workpiece holder for a workpiece to be held ,wherein the workpiece holder is designed stationary, wherein below and/or next to the workpiece holder, a suction device is arranged by means of which particles and/or gases can be removed downward in an exhaust flow,whereinthe suction device is arranged around the workpiece holder with respect thereto and is configured to be rotatable about the workpiece holder.2. The downdraft table according to claim 1 ,whereinthe suction device is configured in the form of a hood and has at least one recess for a person on at least one side working at the downdraft table.3. The downdraft table according to claim 2 ,whereinthe suction device has at least one sidewall articulated to the top edge of the hood.4. The downdraft table according to claim 3 ,whereina plurality of sidewalls are articulated to the edge of the hood with the exception of the region of the recess.5. The downdraft table according to claim 1 ,whereina fastening device to be connected to a person by a connecting element is arranged on the hood by means of which the suction device can be rotated around the workpiece holder by the movement of the person.6. The downdraft table according to claim 1 ,whereinthe suction device and/or the workpiece holder is/are designed to be adjustable in height.7. The downdraft table according to claim 1 ,whereina platform is arranged under the suction device and ...

DUCTLESS OR DUCTED FUMEHOOD WITH IMPROVED FRONT SASH CLOSURE

A novel front sash closure for a fumehood of the sort comprising a workspace defined by a frame and accessed by a front opening, the front sash closure comprising: 1. A front sash closure for a fumehood of the sort comprising a workspace defined by a frame and accessed by a front opening , said front sash closure comprising:a transparent fixed pane and a transparent hinged pane;wherein said transparent fixed pane is securely mounted to the frame of the fumehood so as to partially cover the front opening of the fumehood, whereby to reduce the size of the front opening of the fumehood to a working opening; andwherein said transparent hinged pane is hingedly mounted to the frame of the fumehood intermediate the working opening so as to be able to selectively cover a portion of the working opening.2. A front sash closure according to wherein said transparent hinged pane is hingedly mounted to the frame of the fumehood midpoint in said working opening so as to be able to selectively cover either (i) the top half of said working opening claim 1 , or (ii) the bottom half of said working opening.3. A front sash closure according to further comprising two hinges for hingedly mounting said transparent hinged pane to the frame of the fumehood.4. A front sash closure according to wherein said hinges are configured so that said transparent hinged pane is detachable from the frame of the fumehood.5. A front sash closure according to wherein each of said hinges comprises a spring-biased male finger mounted to said transparent hinged pane and a female recess formed in the frame of the fumehood.6. A front sash closure according to wherein each of said hinges comprises a male finger mounted to said transparent hinged pane and an inverted L-shaped female recess formed in the frame of the fumehood.7. A front sash closure according to further comprising two door hangs claim 6 , wherein each of said door hangs comprises a slot for receiving said male finger.8. A front sash closure ...

INHALATION DEVICE FOR LOCAL VENTILATION SYSTEM

Embodiments of the invention provide an intake apparatus for a local ventilation system. According to at least one embodiment, the intake apparatus includes a connection opening, a hood configured to connect an intake opening larger than the connection opening, an intake duct coupled to the hood while communicating with the connection opening. and an intake fan which is installed at a peripheral portion of the intake opening so as to generate an intake air current in the direction of the connection opening. According to at least one embodiment, the intake fan is provided multiple in number in the circumference direction of the intake opening to generate an intake air current flowing from the intake opening to the connection opening, and a mixed flow prevention body is formed protruding in a partition shape from the intake opening to the intake duct along the inner side of a corner of the hood, and a plurality of lattice exhaust guide flow passages are disposed on straight lines and are isolated from each other, and an air current alignment lattice is installed in the inner space of the intake duct for the lattice exhaust guide flow passage to be disposed in the longitudinal direction of the intake duct. 1. An intake apparatus for a local exhaust system , comprising:a connection opening;a hood configured to connect an intake opening larger than the connection opening;an intake duct coupled to the hood while communicating with the connection opening; andan intake fan, which is installed at a peripheral portion of the intake opening so as to generate an intake air current in the direction of the connection opening, wherein the intake fan is provided multiple in number in the circumference direction of the intake opening so as to generate an intake air current flowing from the intake opening to the connection opening, and a mixed flow prevention body is formed protruding in a partition shape from the intake opening to the intake duct along the inner side of a corner of ...

SYSTEM FOR DETECTING A POSITION OF A FUME HOOD SASH

A method for determining a height of a sash opening formed by a movable sash in a fume hood. The method includes providing a laser device on the hood and providing a reflector on the sash. In addition, the method includes positioning the sash in an open position to form the sash opening and measuring a first distance between the laser device and the reflector when the sash is in the open position. The method also includes calculating the sash height based on the first distance. 1. A method for determining a height of a sash opening formed by a movable sash in a fume hood , wherein the hood is connected to an exhaust fan and a damper for providing a ventilating air flow having a face velocity corresponding to an area of a sash opening within a predetermined range , comprising:providing a laser device on the hood;providing a reflector on the sash relative to a light emitting axis of the laser device;positioning the sash in an open position to form the sash opening:measuring a first distance between the laser device and the reflector when the sash is in the open position;positioning the sash in a closed position;measuring a second distance between the laser device and the reflector when the sash is in the closed position;determining the sash height when the sash is in the open position based on a difference between the first and second distances;adjusting a speed of the exhaust fan or a damper opening based on the determined sash height to maintain the face velocity within the predetermined range.2. The method according to wherein the laser device measures distance based on a comparison of a phase shift between reflected laser light detected by the laser device and laser light emitted by the laser device.3. The method according to wherein the laser device communicates with a lab room controller.4. The method according to wherein the sash includes a frame and the reflector is attached to a ledge of the frame.5. The method according to wherein the sash moves vertically ...

FUME HOOD WITH BAFFLE ASSEMBLY

A fume hood adapted to be connected to an exhaust system has a ventilated chamber with a rear wall, opposite side walls, a ceiling, a floor, and an access opening. A baffle assembly is located in front of the rear wall and includes a lower panel and an upper panel. The lower panel has opposite side edges extending between the chamber side walls, a lower edge spaced apart from the chamber floor, and a plurality of air-exit apertures. The upper panel has opposite side edges extending between the chamber side walls, a lower edge attached to an upper portion of the lower panel, an opposite upper edge attached to the chamber ceiling, and a plurality of air-exit apertures. An elongated grating covers a gap between the lower panel lower edge and the chamber floor and includes a plurality of air-exit apertures. 1. A fume hood adapted to be connected to an exhaust system , the fume hood comprising:a ventilated chamber having a rear wall, opposite side walls, a ceiling, a floor and an access opening; and a lower panel having opposite side edges extending between the chamber side walls and a lower edge spaced apart from the chamber floor, and wherein a plurality of air-exit apertures are formed within the lower panel; and', 'an upper panel having opposite side edges extending between the chamber side walls, a lower edge attached to an upper portion of the lower panel, an opposite upper edge attached to the chamber ceiling, and wherein a plurality of air-exit apertures are formed within the upper panel., 'a baffle assembly located in front of the rear wall, the baffle assembly comprising2. The fume hood of claim 1 , wherein the upper and lower panels are generally rectangular.3. The fume hood of claim 1 , further comprising an elongated grating covering a gap between the lower panel lower edge and the chamber floor.4. The fume hood of claim 1 , wherein the side edges of the lower panel are attached to the respective chamber side walls.5. The fume hood of claim 1 , wherein the ...

Controlled Atmosphere Workstation

A controlled atmosphere workstation comprising a transparent housing () having a pair of apertures () through which can be inserted the hands of a user. The chamber has a forward part defined at least in part by a pair of opposed side wall portions () which converge towards the front of the chamber, in which the apertures are provided. There is a font panel () and an upwardly inclined top viewing panel (). The housing is mounted on a base () and contains a gas circulation system which directs filtered gas onto the side walls of the chamber on both sides, and then re-circulates the gas into a gas circulation chamber provided with fans () on either side, feeding outlets (). 1. A controlled atmosphere workstation comprising a work chamber having a pair of apertures through which can be inserted the hands of a user , at least part of the chamber being transparent; wherein the chamber has a forward part defined at least in part by a pair of opposed side wall portions which converge towards the front of the chamber , one of said apertures being provided in one of said side wall portions and the other of said apertures being provided in the other of said side wall portions; wherein within the chamber there is a gas circulation system comprising a first outlet which directs gas towards the rear of one of said side wall portions so as to flow towards the front of the chamber; a second outlet which directs gas towards the rear of the other of said side wall portions so as to flow towards the front of the chamber; and an inlet positioned towards the rear of the chamber , between the first and second outlets.212-. (canceled)13. A controlled atmosphere workstation comprising a work chamber having a pair of apertures through which can be inserted the hands of a user claim 1 , at least part of the chamber being transparent; wherein the chamber has a forward part defined at least in part by a pair of opposed side wall portions which converge towards the front of the chamber claim 1 ...

CROSS FLOW TABLE

A crossflow table having a housing and a work surface. The housing includes an air intake path in fluid communication with the work surface. The air intake path has an intake entrance and intake exit. A filter and blower unit are positioned adjacent the intake exit. An air exhaust path has an exhaust entrance and exhaust exit. The exhaust entrance is adjacent the filter and blower unit. The air intake path and air exhaust path generally extend parallel to one another. The filter and blower unit draw air into the air intake path at the intake entrance and pull the air though the air intake path where the air exhausts into the filter and blower unit at the intake exit. The blower unit then pushes the air into the air exhaust path at the exhaust entrance and forces the air through the air exhaust path and out the exhaust exit. Due to the intake and exhaust paths being generally parallel to one another, the crossflow table is very compact in overall dimensions. 1. A crossflow table comprising:a housing having a top panel, side panels, a back panel and a front panel;a work surface positioned within said housing defining an open work space area, said open work space area being defined by side walls and a back wall;an air intake mounted above said work surface said air intake positioned adjacent said top panel and said back wall and an air exhaust positioned adjacent said back panel and said top panel;an inner wall positioned between said back panel and said back wall, said inner wall being generally parallel to said back panel and said back wall, and an interior floor spaced from said work surface and generally parallel to said work surface, said inner wall extending from said top panel to said interior floor;a filter compartment positioned between said work surface and said interior floor;a filter mounted within said filter compartment;a blower compartment positioned below said interior floor in operative communication with said filter compartment;a blower mounted within ...

Safety Cabinet and Isolator

Provided is a safety cabinet that, when multiple different kinds of pathogens or the like are handled in the same safety cabinet, can prevent previously-handled pathogens or the like from being commingled with pathogens or the like to be subsequently handled after cleaning and disinfection. The safety cabinet includes a work opening in the front face of a work space and supplies clean air to the work space from above, wherein the safety cabinet is provided with the following: a rear air inlet formed in the back surface lower part or in the bottom rear side of the work space; a front air inlet formed in the bottom front side of the work space; and a work table air inlet formed in a work surface, between the rear air inlet and the front air inlet, and parallel to the front air inlet and/or the rear air inlet. 1. A safety cabinet having a work opening in a front side of a work space and supplying clean air to the work space from above , the safety cabinet comprising:a rear air inlet formed in a rear lower part of or at bottom rear side of the work space;a front air inlet formed at bottom front side of the work space; anda work table air inlet formed in a working surface between the rear air inlet and the front air inlet and in parallel to the front air inlet and/or the rear air inlet.2. The safety cabinet according to claim 1 , wherein the work table air inlet is formed in an intermediate position between the rear air inlet and the front air inlet.3. The safety cabinet according to claim 1 , wherein the work table air inlet is formed in parallel to a surface that an operator faces toward.4. The safety cabinet according to claim 1 , wherein the work table air inlet is a projecting edged air inlet whose edge is made to project into the work space.5. The safety cabinet according to claim 1 , wherein the work table air inlet includes a perforated claim 1 , recessed intake part.6. The safety cabinet according to claim 1 , wherein the work table air inlet is formed nearer to ...

HOOD FOR FUME EXTRACTOR

A removable hood for a fume extractor comprises a shield defining an internal cavity and having one or more vent openings in an upper portion, a welding opening in a rear portion, one or more viewing openings in one or more sides, and a pipe opening in a bottom portion of the shield. The pipe opening comprises arcuate portions on either side thereof for placement adjacent to a pipe. The hood also comprises a removable attachment mechanism on the upper portion of the shield configured to selectively couple the one or more vent openings to an extraction arm of the fume extractor, one or more layers of window material coupled to the shield to cover each of the one or more viewing openings, and one or more internal airflow spaces shaped to direct air flow to cool the window material when suction is applied to the vent openings. 1. A removable hood for a fume extractor , the removable hood comprising: one or more vent openings in an upper portion of the shield in fluid communication with the internal cavity;', 'a welding opening in a rear portion of the shield for permitting introduction of a welding torch into the internal cavity;', 'one or more viewing openings in one or more sides of the shield; and,', 'a pipe opening in a bottom portion of the shield, the pipe opening comprising arcuate portions on either side thereof for placement adjacent to a pipe;, 'a shield for substantially covering a welding area, the shield defining an internal cavity and havinga removable attachment mechanism on the upper portion of the shield, the removable attachment mechanism being configured to selectively couple the one or more vent openings to an extraction arm of the fume extractor;one or more layers of window material coupled to the shield to cover each of the one or more viewing openings; and,one or more internal airflow spaces shaped to direct air flow to cool the one or more layers of window material when suction is applied to the one or more vent openings.2. The removable hood of ...

Fume Hood with Windable Sash

In various example embodiments, a fume hood apparatus is disclosed. The fume hood apparatus comprises an enclosure defining a workspace with a windable transparent sash at the face of the hood that is wound around a roller shaft when in a storage state. The apparatus further comprises an air filter assembly, sash position sensors, exhaust and supply air ducting with fans and dampers controlled by a microprocessor, along with a user interface that allows monitoring and control of the various functions of the apparatus. 1. A fume hood apparatus comprising:an enclosure defining a workspace and an access opening;a windable transparent sash;a roller shaft which rotates about a main axis connected to the sash; andwherein the sash is wound around the roller shaft in a storage state and is at least partiallyunwound from the roller shaft in an operating state of the fume hood.2. The apparatus of further comprising:an air filter assembly located above the workspace;an auxiliary air supply duct;an exhaust duct with a regulating mechanism disposed above the workspace for regulating exhaust air flowing from the fume hood through the exhaust duct;an auxiliary air supply regulating mechanism disposed above the workspace for regulating air ambient supply input;sash position sensors measuring the position of the sash, capable of outputting a signal corresponding to sash position;a face velocity measuring device capable of outputting a signal corresponding to a measured value of face velocity;a microprocessor in communication with the face velocity measuring device, the sash position sensors, the auxiliary air supply regulating mechanism, and the exhaust regulating mechanism, the microprocessor containing data representing an air flow response characteristic of the exhaust regulating mechanism; anda controller for controlling the exhaust regulating mechanism and auxiliary air supply regulating mechanism in response to the signal outputted from the face velocity measuring device, the ...

Modular Exhaust Gas Header And Method Of Incorporating Same In Design Layout For A Manufacturing Process Machine

A modular exhaust gas header designed for use with a process tool having a plurality of exhaust gas points of connection. Embodiments of the modular exhaust gas header include a plurality of branch ducts, at least one for each point of connection in the process tool. Branch ducts, and primary ducts with which they are fluidly connected, may be made from materials designed to withstand exhaust gases that have a high temperature, are corrosive, and/or include volatile solvents. If desired, flow control devices and pressure monitoring instrumentation that selectively measures pressure may be used in each branch duct. The header local to the processing system may be incorporated in a method of designing a layout for a manufacturing process tool and associated exhaust gas handling systems. 1. A modular exhaust gas header system for use with a semiconductor processing machine having plural exhaust gas points , said system comprising:a plurality of branch ducts, each branch duct configured at a first end to be connected to at least one said exhaust gas point of the semiconductor processing machine in fluid communication therewith;a pressure sensor configured to measure pressure in a selected one of said plurality of branch ducts;a plurality of impulse lines connected to said branch ducts, with at least one said impulse line fluidly coupling each of said plurality of branch ducts with said pressure sensor; andat least one primary exhaust gas duct connected to said plurality of branch ducts at a second end to receive exhaust gas therefrom.2. A modular exhaust gas header system according to claim 1 , further comprising at least one flow control device disposed in each of said plurality of branch ducts to adjustably control exhaust gas flow through each said branch duct.3. A modular exhaust gas header system according to claim 2 , wherein each said impulse line is connected to a corresponding branch duct between the first end and the at least one flow control device.4. A ...

MACHINING SYSTEM INCLUDING ENCLOSURE DEFINING SPACE IN WHICH WORKPIECE IS MACHINED

A machining system capable of preventing mist from leaking out from an enclosure to the outside. The machining system includes a first enclosure including an opening and configured to define a first space in which a workpiece is processed, a second enclosure arranged adjacent to the first enclosure and configured to define a second space communicating with the first space through the opening, wherein a robot which can advance to and retreat from the first space through the opening is installed in the second space, and a pressure adjustment device configured to increase a pressure in the second space higher than a pressure in the first space. 1. A machining system comprising:a first enclosure including an opening and defining a first space in which a workpiece is machined;a second enclosure arranged adjacent to the first enclosure and defining a second space which is in fluid communication with the first space through the opening, wherein a robot which can advance to and retreat from the first space through the opening is installed in the second space; anda pressure adjustment device configured to adjust a pressure in the second space to be higher than a pressure in the first space.2. The machining system according to claim 1 , wherein the pressure adjustment device includes a gas supply device configured to supply a gas to the second space so as to increase the pressure in the second space.3. The machining system according to further comprising a temperature adjustment device configured to adjust a temperature of the gas supplied by the gas supply device to the second space.4. The machining system according to further comprising a temperature sensor configured to detect a temperature in the second space claim 3 ,wherein the temperature adjustment device adjusts the temperature of the gas supplied to the second space based on the temperature detected by the temperature sensor.5. The machining system according to claim 1 , wherein the pressure adjustment device ...

Weighing Fume Cupboard

The invention relates to a weighing fume cupboard () for weighing pharmaceutically effective or toxic substances in a laboratory, comprising: a housing () having a front wall (), side walls () and a rear wall () defining a working chamber (), wherein the front wall () of the housing has a working opening () that is constantly open during intended use of the weighing fume cupboard (); a working plate () that delimits the working chamber () at the base side; and armrest () arranged on a front edge of the working plate () in the region of the working opening () and at a distance from the working plate (); and a carrier () that carries the weight of the housing (), the working plate () and the armrest (), wherein the armrest () extends along the longitudinal direction thereof substantially over the entire width of the weighing fume cupboard () and has end sides, and wherein a respective side wall (), a respective end side of the armrest () and the carrier () are connected to a corner profile () formed as a single part. 1. A weighing hood for weighing pharmaceutically active or toxic substances in a laboratory , comprising:(i) a housing with a front wall, lateral walls, and a rear wall, which define a work space, wherein the front wall of the housing has a work opening that is always open in an intended use of the weighing hood,(ii) a work surface, which delimits the floor of the work space,(iii) an armrest, which is disposed on a front edge of the work surface in the region of the work opening and is disposed at a spacing to the work surface, and(iv) a support, that supports the weight of the housing, the work surface and the armrest,wherein the armrest extends along its longitudinal direction, substantially over the entire width of the weighing hood, and has end surfaces, and wherein a respective lateral wall, a respective end surface of the armrest, and the support are connected in each case to a corner profile having a one-piece design.2. The weighing hood according ...

Weighing Fume Cupboard

A weighing fume cupboard () for weighing pharmaceutically active or toxic substances in a laboratory, comprising a housing () which defines a working space (), wherein a front side of the housing () has a working opening () which is open at all times during intended use of the weighing fume cupboard (), a working plate () which delimits the working space () at the bottom side, an armrest () in the region of the working opening (), and a support () which bears the weight of the housing (), of the working plate () and of the armrest (), wherein, during intended use of the weighing fume cupboard, the working plate () is decoupled in terms of shocks and vibrations from the housing (), from the armrest () and from the support (). 2. The weighing hood according to claim 1 , wherein there is no direct contact between the work surface and (i) the housing claim 1 , (ii) the armrest claim 1 , and (iii) the support.3. The weighing hood according to claim 1 , wherein there is no releasable force-fitting claim 1 , form-fitting claim 1 , or material-bonding between the work surface and (i) the housing claim 1 , (ii) the armrest claim 1 , and (iii) the support.4. The weighing hood according to claim 1 , wherein the work surface rests exclusively on the support such that it is decoupled from impacts and vibrations.5. The weighing hood according to claim 1 , wherein a least one resilient element is provided between the support and the work surface claim 1 , on which the work surface rests.6. The weighing hood according to claim 5 , wherein the resilient element is produced from rubber or an elastic plastic.7. The weighing hood according to claim 1 , wherein the support is configured such that it provides a resilient 3-point or 4-point support for the work surface.8. The weighing hood according to claim 1 , wherein the work surface is monolithic claim 1 , and has a weight in a range of 40 kg to 60 kg.9. The weighing hood according to claim 1 , wherein the housing and the armrest rest ...

DUCTLESS LABORATORY HOOD APPARATUS

A ductless laboratory hood apparatus includes a housing defining an interior work chamber, a filtration chamber, an access window opening into the work chamber from an ambient laboratory environment, and an exhaust outlet opening from the filtration chamber into the laboratory environment, a filter system disposed between the work and filtration chambers, and an air circulation system for creating and directing an airstream to flow from the laboratory environment through the access window, the work chamber, the filter system, the filtration chamber, and the exhaust outlet to return into the laboratory environment. The filter system has both a main filter whose constituent material is highly efficient but is also degradable if exposed directly to laboratory processes, and an attenuation filter disposed between the work chamber and the main filter to intercept and attenuate laboratory processes that potentially degrade the main filter, thereby preventing degradation of the main filter. 1. A ductless laboratory hood apparatus for disposition in an ambient laboratory environment for containment of laboratory processes which generate toxic or noxious contaminants , comprising:(a) a housing defining interiorly a work chamber suitable for performance therein of laboratory processes and a filtration chamber, the housing including an access window opening from the laboratory environment into the work chamber and an exhaust outlet opening from the filtration chamber into the laboratory environment,(b) a filter system disposed within the housing between the work and filtration chambers,(c) an air circulation system for creating and directing an airstream to flow from the laboratory environment inwardly through the access window into the work chamber, from the work chamber through the filter system into the filtration chamber, and from the filtration chamber through the exhaust outlet into the laboratory environment, for containing and preventing toxic or noxious contaminants ...

SASH POSITION DETERMINING SYSTEM

A system for determining a sash panel position. An example system includes a linear array of light emitting elements spaced at equal distances from one another mounted on a fume hood frame. The light emitting elements generate a light path towards a sash panel such that the sash panel blocks the light path when positioned at the light emitting element. A linear array of light sensing elements is spaced at equal distances from one another on a side opposite the sash panel. The light sensing elements receive the light path generated by corresponding light emitting elements when the sash panel does not block the light path. The light sensing elements may be on modules having shift registers with bits corresponding to the light sensing elements. The shift register stores a state of the light sensing element and outputs a series of bits indicating the state of each light sensing element. 1. A system for determining a sash panel position at a sash opening in a fume hood formed by at least one movable sash panel mounted over a hood opening to an enclosure structure of the fume hood , the system comprising:a light emitting module comprising a linear array of light emitting elements spaced at equal distances from one another, the light emitting module mounted on a fume hood frame with the light emitting elements directed to generate a light path normal to a sash panel direction of motion such that the sash panel blocks the light path when positioned at a corresponding one of the light emitting elements;a light sensing module comprising a linear array of light sensing elements spaced at equal distances from one another, the light sensing module mounted on the fume hood frame on a side opposite the sash panel, the light sensing elements being aligned to receive the light path generated by a corresponding light emitting element on the light emitting module when the sash panel is not present between the light emitting element and the light sensing element; anda shift register in ...

Fume Extraction Device

Fume extraction device, in particular laboratory fume extraction device, including a housing with an operating chamber that is accessible to an operator through an operating hole in the housing; the operating chamber is defined by a base, side walls and a cover; the operating hole and/or at least one fresh air supply hole in the area of the operating hole is/are provided for allowing fresh air to flow into the operating chamber, and at least one waste air hole in the area of the cover is provided for allowing waste air to escape. At least one filter holder for accommodating at least one filter element is placed upstream of the at least one waste air hole; the at least one filter holder is accessible through the operating hole such that the filter element is accessible and replaceable from the operating chamber. 1. A fume extraction device , having a housing with an operating chamber that is accessible to an operator through an operating hole in the housing , said operating hole being located in an occupied area at the front of the operating chamber outside the fume extraction device , wherein the operating chamber is defined by a base , side walls and a cover , wherein the operating hole and/or at least one fresh air supply hole in the area of the operating hole , in particular close to the base , for allowing fresh air to flow into the operating chamber and at least one waste air hole in the area of the cover to allow waste air to escape , are provided , such that the fresh air flows through the operating chamber to pick up particles from the operating chamber in the direction of the at least one waste air hole and flows as waste air via the at least one waste air hole out of the operating chamber wherein , on the at least one waste air hole , at least one filter holder for accommodating at least one filter element provided for filtering the waste air is arranged , wherein the at least one filter holder is accessible through the operating hole , such that the ...

DUCTLESS FUMEHOOD SYSTEM

A ductless fumehood system, the system comprising: 14.-. (canceled)5. A ductless fumehood system , the system comprising:at least one ductless fumehood for purging hazardous substances from a workspace located within the ductless fumehood; anda remote monitor unit for receiving information from the at least one ductless fumehood and issuing an alert upon the occurrence of a pre-determined condition at the at least one ductless fumehood.6. A system according to wherein the at least ductless fumehood communicates with the remote monitor unit via a communication link claim 5 , wherein the communication link comprises one from the group consisting of: a hard-wired connection; and a wireless connection.7. A system according to wherein the communication link comprises one from the group consisting of: an electrical wire; an optical fiber; a telephone landline; a WIFI connection; and a cellular telephone connection.8. A system according to wherein the remote monitor unit communicates with at least one of the group consisting of: a customer safety center; an other entity; a manufacturer; and an other monitoring service.9. A system according to wherein the remote monitor unit communicates with at least one of the group via a communication link claim 8 , wherein the communication link comprises one from the group consisting of: a hard-wired connection; and a wireless connection.10. A system according to wherein the communication link comprises one from the group consisting of: an electrical wire; an optical fiber; a telephone landline; a WIFI connection; and a cellular telephone connection.11. A system according to wherein the pre-determined condition comprises at least one from the group consisting of: failure of a filter unit; failure of an outlet fan; failure of proper door sealing; and detecting a dangerous substance in the ambient air.12. A system according to wherein the at least one ductless fumehood comprises:a housing;a workspace formed within the housing;a door for ...

Fume cupboard provided with improved accessibility to the sash transmission system

A fume cupboard, of the type comprising a framework with two front uprights ( 2 a, 2 b ), two rear uprights ( 3 a, 3 b ), a rear panel ( 11 ), two side panels ( 6,7 ), an upper panel ( 8 ) and a sash ( 4 ) consisting of a frame ( 12 ) and at least one panel ( 13 ) for closing an inner chamber ( 10 ) of said fume cupboard ( 1 ). The fume cupboard of the invention comprises a transmission system ( 14 ) for transmission of the vertical movements of said sash ( 4 ) located inside the abovementioned front uprights ( 2 a, 2 b ), or inside said front uprights ( 2 a, 2 b ) and said rear uprights ( 3 a, 3 b ).

CONTROL OF EXHAUST SYSTEMS

Exhaust capture and containment are enhanced by means of automatic or manual side skirts, a sensitive breach detector based on interference effects, a combination of vertical and horizontal edge jets, and/or corner jets that are directed to the center diagonally from corners. Associated control functions are described. 146-. (canceled)47. A fume hood comprising:a hood portion connectable to an exhaust system and having a recess and a lower edge therearound; anda jet generator located at said lower edge and configured to generate a combination of first and second jets at said lower edge thereof, said first jets being relatively horizontal in direction and forming a planar jet and said second jets being relatively vertical in direction and forming a planar jet, said first jets being directed toward said hood portion recess;wherein the initial velocities of the horizontal jets are between 2 and 3.5 times the initial velocities of the vertical jets.48. The fume hood as in claim 47 , wherein at least one of said first and second jets are defined by a series of circular jets arranged along a line along said lower edge.49. The fume hood of claim 47 , wherein both the first and second jets are defined by a series of circular jets.50. The fume hood of claim 47 , wherein the first and second jets are defined in pairs proximal to each other.51. The fume hood of claim 47 , wherein the first and second jets emanate from a common plenum.52. The fume hood of claim 47 , wherein said first and second jets are defined by respective series of circular jets arranged along respective lines following said lower edge.53. The fume hood of claim 47 , wherein the lower edge has forward and lateral portions claim 47 , and the combination of first and second jets are generated on the lower edge forward and lateral portions.54. The fume hood of claim 47 , wherein a depth of the recess is approximately equal to a span of the recess from forward to rear such that the recess has a low aspect ratio ...

Safety cabinet

A safety cabinet has a second operation chamber in a first operation chamber and into which clean air is supplied, a second suction opening for sucking in air in the second operation chamber and a portion of the air in the first operation chamber, and a second operation opening part that is provided facing a first operation opening part and communicates the second operation chamber with the first operation chamber. Airflow containment (air barrier) is doubled with respect to the outside of a safety cabinet. In cases where decontamination and disinfection operations are carried out according to the changeover procedures, intensive decontamination and disinfection of the second operation chamber is sufficient, and decontamination and disinfection of the first operation chamber is hardly required. Decontamination and disinfection operations in the changeover procedures and the like can be carried out in a greatly reduced time.

CONTROLLING A FUME HOOD AIRFLOW USING AN IMAGE OF A FUME HOOD OPENING

The present disclosure relates generally to fume hoods, and more particularly to systems and methods for controlling a fume hood airflow using an image (e.g., an optical image, an acoustic image, etc.) of a fume hood opening. A system for controlling a fume hood may include an image capture sensor, a configurator and a controller. The image capture sensor may be positioned to have a field of view that includes at least a portion of a fume hood opening, and may be configured to capture an image that includes at least part of the fume hood opening and/or a person working at the hood. The controller may then provide a control signal to a ventilation device for providing a desired airflow in the fume hood. The control signal may depending on the current size of the fume hood opening as captured by the image capture sensor.

Machine For The Preparation of Pharmaceutical Products

A machine for the preparation of pharmaceutical products has a containing liner, a dosing chamber for preparing at least one pharmaceutical product accommodated within the containing liner and a pneumatic ventilation device for feeding two air flows through the dosing chamber and through the containing liner, respectively. Operation of the pneumatic ventilation device is selectively controlled so that the containing liner has inside a pressure lower than a pressure existing within the dosing chamber and than a pressure existing in the environment outside the containing liner itself.

CONTROLLING A FUME HOOD AIRFLOW USING AN IMAGE OF A FUME HOOD OPENING

The present disclosure relates generally to fume hoods, and more particularly to systems and methods for controlling a fume hood airflow using an image (e.g., an optical image, an acoustic image, etc.) of a fume hood opening. A system for controlling a fume hood may include an image capture sensor, a configurator and a controller. The image capture sensor may be positioned to have a field of view that includes at least a portion of a fume hood opening, and may be configured to capture an image that includes at least part of the fume hood opening and/or a person working at the hood. The controller may then provide a control signal to a ventilation device for providing a desired airflow in the fume hood. The control signal may depending on the current size of the fume hood opening as captured by the image capture sensor. 1. A system for controlling a fume hood comprising:a first image sensor configured to provide images from a first vantage point, the first image sensor having a field of view that includes at least part of a fume hood opening;a second image sensor configured to provide images from a second vantage point that is different from the first vantage point, the second image sensor having a field of view that includes at least part of a fume hood opening; anda controller operatively coupled to the first image sensor and the second image sensor, the controller is configured to provide a control signal to a ventilation device to produce a desired airflow in the fume hood, wherein the controller uses at least one of the images from the first image sensor and/or the second image sensor to generate the control signal.2. The system of claim 1 , wherein the desired airflow is determined as in airflow per unit of area of the fume hood opening.3. The system of claim 1 , wherein the first image sensor comprises an infrared light image sensor for providing infrared light images.4. The system of claim 1 , wherein the first image sensor comprises a visible light image ...

SYSTEM AND METHODS FOR CONTROLLING LABORATORY FUME HOOD MINIMUM AIRFLOW

Methods, systems, and apparatus are described which can safely reduce a laboratory fume hood's minimum airflow and energy consumption when it is determined that the fume hood is not in active use, based on a condition monitoring approach. The condition monitoring approach may incorporate a combination of setback criteria to reliably determine if the fume hood is or is not in use. When a determination has been made that a fume hood is not in use, energy reduction is achieved via automatic methods of hood minimum airflow setback. Fume hood minimum flow reductions are automatically disabled when it is determined that the hood is in active use. 1. A method of providing minimum flow setback to a VAV fume hood , comprising:obtaining an air sample from an exhaust duct through which air exits the fume hood using a multipoint air sampling system to sense one or more contaminants associated with the fume hood and to establish a contaminant status of the fume hood as one of one or more minimum flow setback criteria, the multipoint air sampling system incorporating a zone-based isolation function as a sensor protective operation having a protective mode period;determining whether to enable or disable the minimum flow setback for the fume hood based upon the established contaminant status and one or more additional setback criteria, which at least includes a fume hood flushing time criterion; andproviding one or more minimum flow setback signals to the hood controls of the said fume hood, the said one or more minimum flow setback signals being responsive to the results of the determination of whether to enable or disable the said minimum flow setback of the said fume hood.2. The method according to wherein the setback criteria further includes a sash status that is based upon a setback sash threshold claim 1 , the method further including determining the sash status in addition to the contaminant status of the fume hood.3. The method according to wherein the setback criteria ...

BIOLOGICAL SAFETY CABINET AND CLEAN BENCH

A biological safety cabinet or the like according to an embodiment of the present disclosure includes: a bottom plate provided in a body case and a flexible portion provided to a front shutter protector that is provided to a lower end of the front shutter and is capable of ensure reliability by reducing the load of the front shutter such that outside air is drawn into the body case through a gap formed in a contact portion between the flexible portion and the bottom plate 1. A biological safety cabinet comprising:a box-like body case having an opening portion in its front face;an air conditioner configured to perform air conditioning in an interior of the body case;a bottom plate provided inside the opening portion;a front-side gas discharge portion provided in the bottom plate on a front face side in the body case;a front shutter movable in a vertical direction to cover the opening portion;a front shutter protector provided at a lower end of the front shutter; anda flexible portion provided to the front shutter protector, the flexible portion being configured to contact the bottom plate in front of the front-side gas discharge portion, when the front shutter is fully lowered, the flexible portion having a width substantially equal to a width of the opening portion; anda gap portion formed in a contact portion between the flexible portion and the bottom plate.2. A biological safety cabinet according to claim 1 , whereinthe gap portion is formed by providing a projection, a recess, or a hole in the bottom plate in the contact portion between the bottom plate and the flexible portion.3. A biological safety cabinet according to claim 1 , whereinthe gap portion is formed by providing a slit, a cut, or a hole in the flexible portion.4. A biological safety cabinet according to claim 2 , whereinthe projection, the recess, or the hole is formed to be greater than a range in which the flexible portion contacts the bottom plate.5. A biological safety cabinet according to ...

APPARATUS AND METHOD FOR SCANNING AN OBJECT THROUGH A FLUID STREAM

An apparatus for treating the surface of a microelectronic workpiece via impingement of the surface with at least one fluid and a method for operating the apparatus are described. In particular, the apparatus includes a treatment chamber defining an interior space to treat the microelectronic workpiece with at least one fluid within the treatment chamber, and a movable chuck that supports the workpiece within the treatment chamber. The apparatus further includes a workpiece translational drive system configured to translate the movable chuck between a workpiece load position and at least one processing position at which the workpiece is treated with the at least one fluid using at least one nozzle connected to at least one fluid supply, and a workpiece rotational drive system configured to rotate the microelectronic workpiece. 1. An apparatus for treating the surface of a microelectronic workpiece via impingement of the surface with at least one fluid spray , said apparatus comprising:a treatment chamber defining an interior space to treat a-the microelectronic workpiece with at least one fluid spray within said treatment chamber;a linearly translatable and rotatable chuck that supports said microelectronic workpiece within said treatment chamber, said microelectronic workpiece having an upper surface exposed in a position for treatment by said at least one fluid spray, wherein the chuck comprises first and second, pre-determined, indexed rotational orientations that are controllable such that the workpiece is linearly scanned through said at least one fluid spray in a first linear scan while the workpiece is supported on the chuck in the first rotational indexed orientation and such that the workpiece is linearly scanned through said at least one fluid spray in a second linear scan while the workpiece is supported on the chuck in the second rotational indexed orientation;a workpiece translational drive system operatively coupled to said linearly translatable and ...

Laminar Air Flow Workstation with Temperature Control

Laminar air flow workstation, comprising: a working chamber () comprising a work table (), an air circulation system () comprising first heating means (), and configured to circulate heated air in the workstation and direct a heated and temperature controlled air flow towards the work table (), wherein the working chamber comprises a front handling opening () in fluid connection with the surroundings (), and configured such that the work table () can be accessed from the surroundings (). Also disclosed are the use of the workstation for handling and/or microscopy of biological materials, such as tissue, embryos, and stem cells, as well as the use of the workstation for microbiological safety workstation in accordance with ISO/EN 12469. 144-. (canceled)45. A laminar air flow workstation , comprising:a working chamber comprising a work table and a front handling opening, the front handling opening being in fluid communication with a surrounding environment and configured such that the work table is accessible from the surrounding environment; andan air circulation system comprising first heating means, the air circulation system configured to circulate heated air in the laminar air flow workstation and to direct an air flow that is heated and temperature-controlled towards the work table.46. The laminar air flow workstation according to claim 45 , wherein the air flow directed towards the work table is heated and controlled to be above 25° C.47. The laminar air flow workstation according to claim 45 , wherein the air flow directed towards the work table is essentially laminar and/or is directed perpendicular to the work table.48. The laminar air flow workstation according to claim 45 , wherein the work table comprises second heating means for heating and controlling a temperature of the work table.49. The laminar air flow workstation according to claim 45 , wherein the work table comprises a thermally conductive material.50. The laminar air flow workstation according ...

Foam Cutting Table

The present device is a cutting table for supporting a workpiece above a support surface while cutting the workpiece with a tool. The cutting table is comprised of at least one foam table piece that includes a top side, a bottom side, and at least one peripheral edge. Two or more foam standoffs project upwardly from the top side of the foam table piece a common height and each terminate at a top surface adapted for contacting and supporting the workpiece. The two or more standoffs allow the workpiece, when supported by the foam table piece, to be cut with the tool even if some of the standoffs are damaged by the tool. Preferably a portion of the area of the top surfaces of the standoffs to an area of the top side of the foam table pieces is less than 50%, preferably being between either 20-30% or 45-50%.

LOCAL AIR CLEANER

The local air cleaning apparatus causes a cleaned uniform air flow blown out from an air flow opening face to collide with an air collision face W to flow outside an open region, so as to cause cleanliness to be higher inside a guide and inside the open region than other regions. Additionally, the apparatus includes at least one of a device for measuring pressures inside the guide and inside a push hood a device for measuring the cleanliness inside the guide or of the open region, and a device for measuring a gap area between the guide and the air collision face W, and, to ensure the cleanliness from a result of the measurement, controls such that a flow velocity of the cleaned uniform air flow blown out from the air flow opening face can be decelerated or accelerated. 1. A local air cleaning apparatus comprising:a push hood including an air flow opening face that blows out a cleaned uniform air flow; anda guide provided on a side of the push hood having the air flow opening face and extending from the side thereof having the air flow opening face to a downstream side of the uniform air flow to form an opening face at an end portion of the downstream side,in which the push hood is arranged such that the cleaned uniform air flow blown out from the air flow opening face passes through inside the guide and then collides with an air collision face on a downstream side of the opening face of the guide; the opening face of the guide is spaced apart from and opposite to the air collision face to form an open region between the opening face of the guide and the air collision face; and the cleaned uniform air flow blown out from the air flow opening face collides with the air collision face to flow outside the open region, so as to cause cleanliness to be higher inside the guide and inside the open region than other regions, whereinthe local air cleaning apparatus comprises at least one of a device for measuring pressures inside the guide and inside the push hood, a device ...

LABORATORY HOOD WITH VENTURI EFFECT AIR INTAKE DEVICE FOR ANTI-TURBULENT AIR FLOW CONTROL

In a laboratory hood system having a housing with an access window opening into an interior work chamber for performing laboratory processes, and an air circulation system for creating an air flow from the laboratory environment inwardly through the access window into the work chamber for preventing hazardous materials from escaping into the laboratory environment through the access window, one or more air intake control devices are disposed in a selected location or locations at the access window to overcome any tendency for air turbulence to occur. The air intake control device has an air flow channel extending from an air intake opening to the laboratory environment to an air discharge opening to the work chamber, with a constriction in the channel for causing a venturi-effect increase in air velocity while flowing through the channel to promote non-turbulent air flow entering the work chamber at the selected location or locations. 1. A laboratory hood system for performance of laboratory processes within a contained area , comprising:(a) a housing defining an interior work chamber for performance therein of laboratory processes, the housing including an access window opening from the ambient laboratory environment into the work chamber and an exhaust outlet spaced from the access window,(b) an air circulation system for creating an air flow from the laboratory environment inwardly through the access window into the work chamber and therefrom to the exhaust outlet, for preventing hazardous materials from passing from the work chamber into the laboratory environment through the access window, and(c) an air intake control device disposed in a selected location at the access window, the air intake control device defining an air flow channel between an air intake opening to the laboratory environment and an air discharge opening to the work chamber for air flow from the laboratory environment through the air flow channel and into the work chamber, the air flow ...

SOOT-EXHAUSTING DEVICE

A soot-exhausting device is provided with a left and a right upright plate. A front end of the left upright plate is bended and extended to form a first upright plate and a left deflection plate. The upper part of the free end of the left deflection plate is bended rightwardly to form a left top plate. A front end of the right upright plate is bended and extended to form a second upright plate and a right deflection plate. The upper part of the free end of the right deflection plate is bended leftwardly to form a right top plate. The bottom of the air-extraction hood is provided with a left and a right air blow groove that are respectively in elongate shape and parallel to top side of the left and the right top plate and located at the rear end of each top side. 1. A soot-exhausting device , comprising an air-extraction hood , a left upright plate and a right upright plate , where a bottom of the air-extraction hood is provided with at least one air-extraction slot and the air-extraction slot is connected to an air-extraction device for drawing air upwards; the left upright plate and the right upright plate are respectively placed below a left side and a right side of the air-extraction hood; and a space is formed between the air-extraction hood , the left upright plate and the right upright plate; wherein a side or a surface of the air-extraction hood , the left upright plate and the right upright plate that is approaching towards a user is defined as a front end , while a side or a surface of the air-extraction hood , the left upright plate and the right upright plate that is away from the user in an opposite direction is defined as a rear end; and two sides of the air-extraction hood , the left upright plate and the right upright plate are respectively defined as a left side and a right side when the user faces the air-extraction hood , left upright plate and right upright plate; the soot-exhausting device characterized in that:the front end of the left upright ...

FUME HOOD AIR CHANNELING DEVICE

In one embodiment, a fume hood equipment support system may include a platform having a plurality of vertical air channels therethrough, support legs configured to hold the platform above the work surface of a fume hood, and an air chamber formed beneath the platform. The platform may include a lattice of interconnected horizontal slats forming a plurality of vertical air channels through the platform. The platform may have sidewall surfaces, an upper surface and a lower surface. The support legs may be attached to the platform to hold the platform above the work surface of fume hood. The work surface and the lower surface of the platform may form the air chamber beneath the platform. The air chamber may be in fluid communication with the vertical air channels. The sidewall surfaces, the upper surface and the lower surface may together define a bulk volume of the platform, the bulk volume having void space defined by the vertical air channels. In on example, the bulk volume comprises at least 50% void space.

Intelligent air curtain fume hood

The present invention provides an intelligent air curtain fume hood, which includes cabinet, inclined air curtain module, intelligent window control module and processing module. Feature of the present invention is that the inclined air curtain module is the use of inclined air flow field distribution generated during the operation of shelter in the work space, and with variable air volume theory in order to reduce the gas leaking chance to further achieve security and energy saving effect.

Fume Hood With Horizontally Moveable Panels

A fume hood adapted to be connected to an exhaust system has a ventilated chamber having an access opening, and at least one horizontally sliding sash or panel at the access opening that is configured to cover and uncover portions of the access opening. Each horizontally sliding panel has a peripheral edge that convexly curves into the chamber towards a centerline of the at least one horizontally sliding panel. In some embodiments, the peripheral edge is convexly curved in an arc of between about ninety degrees and about one hundred eighty degrees (90°-180°). The exhaust system creates air flow into the chamber and the curved peripheral edge produces controlled air flow patterns into the chamber. The curved edge is aerodynamically designed to help shed vortices and prevent accumulation of concentrations on the inside edge of the each panel typical of conventional fume hood sashes/panels. 1. A fume hood adapted to be connected to an exhaust system , the fume hood comprising:a ventilated chamber having an access opening; andat least one horizontally sliding panel at the access opening that is configured to cover and uncover portions of the access opening, wherein the at least one horizontally sliding panel has a peripheral edge that convexly curves into the chamber towards a centerline of the at least one horizontally sliding panel, and wherein air flow created within the chamber by the exhaust system causes the peripheral edge to produce controlled air flow patterns into the chamber.2. The fume hood of claim 1 , wherein the peripheral edge is convexly curved in an arc of between about ninety degrees and about one hundred eighty degrees (90°-180°).3. The fume hood of claim 1 , wherein the at least one horizontally sliding panel has a generally rectangular shape with opposite side edges and opposite upper and lower edges claim 1 , wherein each edge convexly curves into the chamber towards a centerline of the at least one horizontally sliding panel.4. The fume hood of ...

METHOD AND APPARATUS OF OPTIMIZING PERFORMANCE OF FUME HOODS

An apparatus including a sensor configured to sense total pressure within an inner chamber of a housing, and to sense differential pressure between the inner chamber of the housing and work area outside of the housing; a computer processor configured to receive signals from the sensor based on the total pressure and the differential pressure; and wherein the computer processor controls the rate at which the flapper oscillates based on the total pressure signal from the sensor, to thereby control the direction of flow of air from the inner chamber of the housing through the plurality of openings of the blade, through the plurality of openings of the teeth, for optimum containment with ultra stable vortex inside the chamber ; and controls the rate at which exhaust damper modulates based on differential pressure signal to maintain constant face velocity at the apparatus user opening and out an exhaust opening of the housing. 1. An apparatus comprising:a housing having an inner chamber, and an exhaust opening which allows air to escape from the inner chamber out through the exhaust opening;a first window device, including a first windowpane and a first window frame;wherein the first window device is connected to the housing, so that the first window device can be placed in a first state or a second state;wherein in the first state, the first window device covers a window opening in the housing, and in the second state, the first window device does not cover the window opening in the housing;wherein the window opening in the housing leads to the inner chamber of the housing; andan air device fixed to the housing, wherein the air device has an opening which permits air to go through the opening of the air device, into the housing, and into the inner chamber of the housing, and thereafter to escape out of the inner chamber of the housing through the exhaust opening.2. The apparatus of furthercomprising a flapper including a blade and teeth, each of which have a plurality ...

LABORATORY FUME HOOD HAVING WALL JETS

The present invention relates to a fume cupboard for a laboratory, which fume cupboard has a housing in which a work area is located, delimited in the front by a front sash , at the bottom by a bottom plate and on each side by a side wall . The fume cupboard further comprises a first hollow profile ′ disposed on a frontal end face of each side wall , wherein each first hollow profile ′ contains a first pressure chamber ′ which is in fluid communication with a multiplicity of first openings ′, from which air jets in the form of wall jets consisting of compressed air may be output into the work area along the respective side wall . The fume cupboard is characterized in that the size of the first openings ′ and the air pressure that prevails in the first pressure chamber ′ during proper user of the fume cupboard are selected such that the first pressure chamber ′ can be connected fluidically to a compressed air system installed in the building without causing airflow delamination of the wall jets from the side wall in a region extending from a front side of the work area at least as far as 25% of the depth of the work area. 120-. (canceled)21. A fume cupboard for a laboratory , the fume cupboard comprising a housing in which a work area is located , delimited in the front by a front sash , at the bottom by a bottom plate and on each side by a side wall , and having a first hollow profile disposed on a front frontal end face of each side wall , wherein each first hollow profile contains a first pressure chamber which is in fluid communication with a multiplicity of first openings , from which air jets in the form of wall jets consisting of compressed air can be output into the work area along the respective side wall , wherein the size of the first openings and the air pressure that prevails in the first pressure chamber during proper use of the fume cupboard are selected such that the first pressure chamber can be connected fluidically to a compressed air system ...

VENTILATION SYSTEMS FOR USE WITH A PLASMA TREATMENT SYSTEM

A gas containment apparatus for use with an end effector including at least one plasma head includes at least one enclosing structure coupled to the end effector. The enclosing structure is configured to capture a gas produced by the at least one plasma head. The gas containment apparatus also includes a duct coupled to the at least one enclosing structure and configured to channel the gas from within the enclosing structure. 1. A gas containment apparatus for use with an end effector including at least one plasma head , said gas containment apparatus comprising:at least one enclosing structure coupled to the end effector, said at least one enclosing structure configured to capture a gas produced by the at least one plasma head; anda duct coupled to said at least one enclosing structure, said duct configured to channel the gas from within said enclosing structure.2. The gas containment apparatus in accordance with claim 1 , wherein said enclosing structure comprises:a collar configured to circumscribe the plasma head; anda shroud coupled to said collar, said shroud configured to capture the gas produced by the at least one plasma head.3. The gas containment apparatus in accordance with wherein said collar includes a first end defining a first diameter and a second end defining a second diameter smaller than the first diameter.4. The gas containment apparatus in accordance with wherein said duct is coupled to said shroud.5. The gas containment apparatus in accordance with further comprising a support structure coupled between said at least one enclosing structure and said duct.6. The gas containment apparatus in accordance with further comprising a mounting plate coupled between the end effector and at least one of said duct claim 5 , said at least one enclosing structure claim 5 , and said support structure.7. The gas containment apparatus in accordance with claim 1 , wherein said at least one enclosing structure and said duct are integrally formed by additive ...

SAFETY WORKBENCH WITH CONTROLLED CIRCULATING AIR FLOW AND METHOD FOR ITS OPERATION

The invention relates to a safety workbench () having a work space () surrounded by a housing () having a work opening () located in the housing front side () and adjustable with an adjustable front panel () for admitting into the work space () an air inlet flow (), an exhaust blower () and a circulating air blower () for conveying an air flow () in the safety workbench (), which are designed such that a partial air flow drawn in by the exhaust blower () is filtered through an exhaust air filter () as exhaust air flow () from the safety workbench () and a partial air flow drawn in by the circulating air blower () through a circulating air filter () as downwardly directed circulating air flow () into the work space (), and a control device (), a differential pressure sensor () and two pressure transducers () connected thereto which are designed to measure a pressure at two different positions within the safety workbench d, wherein a first of the pressure sensors () is arranged in the immediate vicinity of the fan blades () on the low pressure side () of the circulating air blower () and a second of the pressure sensors () is arranged in a low-flow area, () on the low pressure side () of the circulating air blower (). The invention further relates to a method of operating a safety workbench according to any of the preceding claims, comprising the steps of: a) determining a pressure difference between the first pressure transducer () and the second pressure transducer () by means of the differential pressure sensor (), b) comparing the pressure difference determined in a) with a nominal pressure difference stored in the control device (), which corresponds to a nominal volume flow, or b) converting the pressure difference measured in a) into an associated volume flow and comparing the calculated volume flow with one nominal volume flow stored in the control device (), and c) regulating the circulating air blower () such that the nominal volume flow is conveyed. 15. A ...

Work Surface Ventilation

Suction device for use in nail studio, comprising circular opening at front covered with mesh

The suction device is of a compact size and can be built into the worktop of the table used by the nail stylist. A small electric drive activated with a switch (3) is positioned under the tabletop and is covered by a padded front sheet (1). The dust created during the nail filing process is sucked into a circular opening (2) located in the center of the cover sheet (1). A fine mesh (4) protects small items from incidentally being sucked in.

Safety workbench and method for calibrating the same

Environmental control apparatus

내용없음. None.

Safety workbench with controlled circulating air flow and method for operating the same

本发明涉及一种安全工作台，其具有被壳体包围的工作腔；其具有用于输送所述安全工作台中的空气流的排风扇和循环空气风扇，其适于将被排风扇吸入的部分空气流作为排风流穿过排风过滤器从所述安全工作台吹出并且将被循环空气风扇吸入的部分空气流作为朝下方定向的循环空气流穿过循环空气过滤器吹入所述工作腔；以及其具有调节装置、差压传感器以及两个与所述差压传感器连接的压力传送器，所述压力传送器适于在所述安全工作台内的两个不同的位置上测量压力，其中第一压力传送器紧邻所述循环空气风扇的低压侧上的风扇叶片地布置，第二压力传送器布置在所述循环空气风扇的低压侧上的流动稳定的区域内。本发明还涉及一种所述安全工作台的运行方法。

Desk type draft

Method for producing coated fused alumina particles

Exhaust device

FIELD: ventilation. SUBSTANCE: invention relates to laboratory exhaust devices intended for cleaning air in the operating room. Laboratory exhaust device is made with a working area (13) and ventilation system (26) to create air flow (27) or with inlet (63) for air flow (27) for removal of gases and/or solid particles (48) of the working area (13). There is at least one surface limiting the working area (13). Device contains charging devices (30, 87, 88) for ionisation of air flow (27) and/or for electrostatic charging of at least one above-mentioned surface. Charging devices (30, 87, 88) are made for the purpose of neutralisation of air flow (27) and/or at least one above-mentioned surface. EFFECT: provides for removal of gases and/or solid particles from working area of laboratory device. 26 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 583 020 C2 (51) МПК B01L 1/04 (2006.01) A61L 2/02 (2006.01) A61L 9/22 (2006.01) B03C 3/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013126884/05, 11.11.2011 (24) Дата начала отсчета срока действия патента: 11.11.2011 (72) Автор(ы): ГЕРТНЕР, Ульрих (DE) (73) Патентообладатель(и): ВАЛЬДНЕР ЛАБОРАЙНРИХТУНГЕН ГМБХ УНД КО. КГ (DE) Приоритет(ы): (30) Конвенционный приоритет: R U 13.11.2010 DE 10 2010 051 364.4; 26.05.2011 DE 20 2011 101 114.7 (43) Дата публикации заявки: 20.12.2014 Бюл. № 35 2 5 8 3 0 2 0 (45) Опубликовано: 27.04.2016 Бюл. № 12 (56) Список документов, цитированных в отчете о поиске: SU 1039551 A, 07.09.1983. DE 10341346 A1, 31.05.2005. RU 2149704 C1, 27.05.2000. US 6428611 B1, 06.08.2002. US 6149717 A, 21.11.2000. US 6569007 B2, 27.05.2003. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.06.2013 EP 2011/005689 (11.11.2011) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 5 8 3 0 2 0 WO 2012/062478 (18.05.2012) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский ...

Adjustable clean-air flow environment

인클로져는 조정 가능한 청정 기체 유동 환경 및 봉입된 공간의 압력차 분배 기술의 방법을 포함한다. 특히, 청정 기체 유동 인클로져는 공중 미세 미립자 오염으로부터 재료들을 분리시킨다. 본 발명의 일 실시예에서는 재료 처리 및 분리를 위한 소형 풋프린트(footprint), 모듈, 선택형의 청정 기체 유동 환경을 이용한다. 상기 환경은 기체 유동 발생기(12)로부터 기체 필터(13)를 통해 여과된 기체 유동 공간(20)으로 여과된 기체를 제공함에 의해 클린룸 클라스의 환경으로 될 수 있다. 본 발명의 다른 실시예에서는 제 1 및 제 2 플리넘(23,26)을 제공함으로써 수평 및 수직의 여과된 기체 유동 모두를 동일의 여과된 기체 유동 공간(20)내에서 분리시키거나 또는 조합시켜 이용할 수 있다.

Connecting cabinet and the fume hood apparatus comprising the connecting cabinet

本发明公开一种连接柜及包含该连接柜的通风橱组件，其中，连接柜包括呈L型的柜体，柜体包括垂直连接的柜体第一部分和柜体第二部分，柜体第一部分朝向地面的一侧开设有与通风橱顶部的排风口连通的第一通风口，柜体第二部分远离柜体第一部分的一侧开设有与舱室壁面上的通风管连通的第二通风口，在柜体内还设置通风通道，通风通道的一端与第一通风口连通，另一端与第二通风口连通。上述设计可以省去标准弯头的使用，进而降低通风橱的接管高度，以使通风橱能安装于层高较低的船舶舱室内，降低安装难度，保证通风橱排风系统的完整。

Fume hood

The invention relates to a fume hood, installed in a laboratory, which forcibly discharges gases such as harmful gases for the human body, bad smells etc. More specifically, the invention relates to a fume hood wherein many of injection nozzles are installed so that chemicals remained in a fume hood wall can be removed through the liquid which is injected from the injection nozzles and which enables to suppress the occurrence of a fire due to the chemical reactions that occur in different chemicals.

Protective device having one or more optical sheet layers

A protective device for use in a hazardous environment that is at least partially isolated from a user is provided. The protective device includes a plurality of layers made of a film for attachment to a surface. The layers are removably attachable to one another so that when one of the layers becomes impaired through exposure to the environment the impaired layer is capable of being removed from the remaining layers in order to restore the protective device.

Remote control system of experimentation device and experimentation device

본 발명은 실험장치의 작동에 필요한 최적의 환경 조건에 대응하여 실험장치의 각 부품에 대한 원격제어가 가능하도록 관리하고, 실험장치의 이상 상황 발생 시 보다 효과적으로 대처하여 실험장치가 항상성을 유지하도록 하는 실험장치의 원격제어시스템과 실험장치에 관한 것이다. 이를 위해 실험장치의 원격제어시스템은 실험장치와 저전력 블루투스 통신방법을 이용하여 양방향 통신 가능하게 연결되는 휴대단말 및 실험장치와 인터넷 통신방법을 이용하여 양방향 통신 가능하게 연결되는 중계서버와 중계서버와 인터넷 통신방법을 이용하여 양방향 통신 가능하게 연결되는 제어서버가 포함된 서버를 포함하고, 휴대단말과 제어서버 중 적어도 어느 하나는, 환경정보를 수신하여 표시하는 한편, 환경정보를 바탕으로 실험장치의 제어를 위한 제어정보를 생성하여 실험장치에 전송한다. The present invention manages to enable remote control of each part of the experimental apparatus in response to the optimum environmental conditions required for the operation of the experimental apparatus, and more effectively copes with an abnormal situation of the experimental apparatus so that the experimental apparatus maintains homeostasis. It relates to a remote control system and an experimental device of an experimental device. To this end, the remote control system of the experimental device is a portable terminal connected to enable bidirectional communication using the experimental device and a low-power Bluetooth communication method, and a relay server and a relay server and the Internet that are connected to enable two-way communication using the experimental device and the Internet communication method. It includes a server including a control server connected to enable bidirectional communication using a communication method, and at least one of the mobile terminal and the control server receives and displays environmental information, while controlling the experimental apparatus based on the environmental information. It generates control information for and transmits it to the experimental device.

Green ventilation cabinet for laboratory

本发明提供一种实验室绿色通风柜，包括通过侧板连接为一体的上柜体和下柜体，所述上柜体和下柜体之间形成工作台，所述上柜体内设有与离心风机连接的通风道，所述通风道的出口设有伸出所述上柜体顶端的负压式排风口，其特征在于：所述上柜体内沿负压式风的排出方向位于所述通风道的前端处设有空气过滤器。本发明的通风柜，从下往上抽的负压式风将实验过程中产生或挥发的有毒、有害气体全部吸出至排风口排出，通过在通风道前端设置空气过滤器，使得气体从排风口排出前能有效的被吸附过滤掉，确保从排风口中排出的气体是干净无害的。实验室中采用本发明的通风柜后能避免有害化学气体的外溢，能保护实验室室外的环境，具备气体自净化的功能。

Work Surface Ventilation

Robust air cleaning system in manicure workstation

A manicure table provides a ventilated and filtered venue for removing debris and odor that are generated in the manicuring process. The manicure table employs table geometry to establish optimally low air flow through functional components that remove debris and odor.

Patent DE3206714C2

Extraction table with a workpiece holder for a workpiece to be held

Die Erfindung betrifft einen Absaugtisch (1) mit einem Werkstückhalter (2) für ein zu haltendes Werkstück, wobei der Werkstückhalter (2) ortsfest ausgestaltet ist, wobei unterhalb und/oder neben dem Werkstückhalter (2) eine Absaugvorrichtung (3) angeordnet ist, vermittels welcher Partikel und/oder Gase in einem Abluftstrom nach unten abgeführt werden können, wobei die Absaugvorrichtung (3) gegenüber dem Werkstückhalter (2) um diesen herum angeordnet und um den Werkstückhalter (2) herum drehbar ausgestaltet ist. The invention relates to a suction table (1) with a workpiece holder (2) for a workpiece to be held, wherein the workpiece holder (2) is configured stationary, wherein below and / or next to the workpiece holder (2) a suction device (3) is arranged, mediate which particles and / or gases can be discharged downwards in an exhaust air flow, wherein the suction device (3) is arranged around the workpiece holder (2) and rotatable around the workpiece holder (2).

Dust extraction device in a precision engineering work table

Work surface

Shelter

FIELD: making of working positions protected against dust. SUBSTANCE: passage areas of air-admitting holes of grid of delivery and exhaust ducts of working zone in the sections whose width is equal to 1/5 to 1/3 of the distance between top of working bench and lower edge of partition in the direction perpendicular to partition plane which exceeds passage area of holes of the remaining part of delivery and exhaust ducts by 2 to 3 and 3 to 4 times, respectively. Delivery duct of clean zone is provided with delivery duct of air screen adjoining its end opposite to partition and communicating with delivery duct of clean zone before filter. Delivery duct of air screen is provided with cellular grid having width equal to 1/10 to 1/12 of width of cellular grid located in clean zone. Part of cellular grid of air screen delivery duct adjoining the cellular grid of clean zone delivery duct has width which is equal to 70 to 80 percent of total width of cellular grid in air screen delivery duct. Passage area of each hole of cellular grid is less by 3 to 4 times as compared with each hole of remaining portion of grid in the duct of air screen. EFFECT: enhanced reliability. 2 cl, 1 dwg 90$ 0Сс ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) ВИ 2030 226‘ 51 МК В 08 В 15/00 13) СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 5019622/12, 08.07.1991 (46) Дата публикации: 10.03.1995 (56) Ссылки: 1. Куприянов И.П. Технологический микроклимат. М.: Советское радио, 1976, с.99 и 100.2. Патент Франции М 2045223, кл. Е 24Е {106, 1970.3. Авторское свидетельство СССР М 1168780, кл. Е 24АЕ 7/06, 1981. (71) Заявитель: Научно-исследовательский институт гигиены труда и профзаболеваний (72) Изобретатель: Крупкин Г.Я., Знаменский Р.Б., Чупрынин Е.В., Хомутецкий Ю.Н., Мотина Г.Л., Алексович М.М., Яценко Н.А. ‚ Дударев А.Я. (73) Патентообладатель: Научно-исследовательский институт гигиены труда и профзаболеваний (54) УКРЫТИЕ (57) Реферат: Использование: для ...

Transparent thermoplastic acrylonitrile-butadiene-styrene resin compositions

본 발명은 투명 ABS계 열가소성 수지 조성물에 관한 것으로, 보다 상세하게는 투명 아크릴로니트릴-부타디엔-스티렌 수지에 다황화물을 포함하여 이루어지는 것을 특징으로 하는 투명 ABS계 수지 조성물에 관한 것으로, 투명성 및 열안정성이 우수하며, 금형 침전물을 발생시키지 않아 표면 선명성이 우수한 투명 ABS계 열가소성 수지 조성물을 제공하는 효과가 있다.  The present invention relates to a transparent ABS thermoplastic resin composition, and more particularly to a transparent ABS resin composition comprising a polysulfide in the transparent acrylonitrile-butadiene-styrene resin, transparency and thermal stability It is excellent in that it does not generate a mold deposit, and has an effect of providing a transparent ABS thermoplastic resin composition having excellent surface sharpness. 투명 ABS 수지, 투명성, 다황화물, 표면 선명성 Transparent ABS resin, transparency, polysulfide, surface sharpness

A kind of spray gun cleans cabinet

本发明公开了一种喷枪清洗柜，包括：壳体、驱动装置、压杆机构、固定装置和废液收集装置，壳体包括基座和活动上盖，活动上盖通过轴与基座连接，壳体一侧设置有压杆机构，压杆机构下端设置有驱动装置，壳体内设置有固定装置，该固定装置的下固定座设置在基座上，固定装置的上固定座设置在活动上盖下方，壳体内侧下方设置有废液收集装置，壳体还设置有控制器。本发明一种喷枪清洗柜，通过设计自动化的清洗装置替代人工清洗，利用压杆机构和固定装置模拟人工洗枪并利用废液收集装置实现废液回收避免了二次污染。

Clean room systems

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Laboratory exhaust system

本申请涉及一种实验室排风系统，包括固定架，固定架的相对两侧均固接有同轴线设置的内风管，固定架的上侧以固定架的竖直中心轴为中心对称固接有两竖直设置的外风管，固定架内设置有轴线与固定架竖直中心轴处于同一直线的圆柱状的活动架，活动架对应一内风管的一侧固接有吹风口与内风管连通的补风机，活动架对应另一内风管的一侧固接有抽风口与外风管连通的排风机，补风机的进风口与一外风管连通，排风机的出风口与另一外风管连通，活动架以固定架的竖直中心线为轴线转动连接于固定架，固定架上设置有能够驱动活动架转动的驱动机构。本申请具有实现实验室内通风与排风的方向可调，满足实验的通风循环需求的效果。

Safety workbench with controlled circulating air flow and method for its operation

Die Erfindung betrifft eine Sicherheitswerkbank (1) mit einem von einem Gehäuse (2) umgebenen Arbeitsraum (3) mit einer in der Gehäusefrontseite (4) befindlichen und mit einer verstellbaren Frontscheibe (5) einstellbaren Arbeitsöffnung (6) zum Einlassen eines in den Arbeitsraum (3) einströmenden Lufteintrittsstroms (7), einem Abluftgebläse (8) und einem Umluftgebläse (9) zum Fördern eines Luftstroms (10) in der Sicherheitswerkbank (1), die so ausgebildet sind, dass ein vom Abluftgebläse (8) angesaugter Teilluftstrom durch einen Abluftfilter (11) als Abluftstrom (12) aus der Sicherheitswerkbank (1) und ein vom Umluftgebläse (9) angesaugter Teilluftstrom durch einen Umluftfilter (13) als nach unten gerichteter Umluftstrom (14) in den Arbeitsraum (3) geblasen wird, sowie einer Regelvorrichtung (15), einem Differenzdrucksensor (16) sowie zwei mit diesem verbundenen Druckaufnehmern (17, 18), die zur Messung eines Drucks an zwei unterschiedlichen Positionen innerhalb der Sicherheitswerkbank ausgebildet sind, wobei ein erster der Druckaufnehmer (17) in unmittelbarer Nähe der Lüfterschaufeln (90) auf der Niederdruckseite (91) des Umluftgebläses (9) und ein zweiter der Druckaufnehmer (18) in einem strömungsberuhigten Bereich (20) auf der Niederdruckseite (91) des Umluftgebläses (9) angeordnet ist. Die Erfindung betrifft weiter ein Verfahren zum Betreiben einer Sicherheitswerkbank nach einem der vorhergehenden Ansprüche, umfassend die Schritte: a) Bestimmen einer Druckdifferenz zwischen erstem Druckaufnehmer (17) und zweitem Druckaufnehmer (18) mittels des Differenzdrucksensors (16), b1) Vergleichen der in a) bestimmten Druckdifferenz mit einer in der Regelvorrichtung (15) hinterlegten Soll-Druckdifferenz, die einem Soll-Volumenstrom entspricht, oder b2) Umrechnen der in a) gemessenen Druckdifferenz in einen zugehörigen Volumenstrom und Vergleichen des berechneten Volumenstroms mit einem in der Regelvorrichtung (15) hinterlegten Volumenstrom-Sollwert, und c) Regeln des ...

Fume hood

A fume hood includes a polygonal-shaped work top providing three or more equally-spaced work areas. A tubular column with a lower apertured portion is located at the center of the work top for exhausting heavier-than-air gases. A plenum located above the work top and supported by the tubular column is provided with slots located above the work openings for collecting and exhausting lighter-than-air gases. Transparent viewing screens permit inspection of all work locations from a single vantage point. A central pedestal is used to support the hood and to route plumbing and electrical conduits from the floor. The system is easily convertible between up-draft and down-draft exhaust without the need for special baffles.

Hood for the extraction of gases, vapors and suspended matter

The hood for the extraction of gases, vapors and suspended matter comprises a hood casing, a supply air feed device and one or more suction outlets. It serves preferably as a laboratory hood. In the vicinity of the front suction inlet is provided at least one nozzle ledge for the supply air, whose outlet port is directed in the plane of the front suction inlet. At least one suction outlet is provided, which extracts in the direction of the axis of the vortex flow. According to a preferred embodiment, there are two suction outlets and two facing nozzle ledges. The nozzle ledges can have a rectangular cross-section, the front side being constructed as an outlet port. There is a constant reduction in the nozzle cross-section.

Air-insulated work station

A work station having a work space bounded by an air duct system. Air is sucked out of the ducts for filtering, part of the air being circulated downwardly through the work space and back to the ducts, and the remainder vented from the system. Air passageways adjacent to an access opening permit outside air to replenish the air in the ducts, the air flows established within the station serving to insulate the work space from gaseous communication with the outside atmosphere.

Movable-apron hood, notably for laboratories

A hood, notably of the type adapted to be associated with the working surface of a laboratory table for protecting the operators against the deleterious fumes developed, and the gaseous noxious products handled, during manipulations carried out on said surface, which comprises a movable apron suspended at its upper and rear portion from two points located each on a separate endless transmission and support line passing over rotary driving and guide members, each transmission and support line being provided with a balance counterweight, said line and members being part of the apron hoisting system.

STERILE LAMINAR FLOW PRODUCTION UNIT WITH VERTICAL CIRCULATION

L'unité de production de flux laminaire stérile à circulation verticale, selon l'invention, comporte un caisson mobile 2 comprenant les moyens de production et de propulsion 21 du flux d'air, associés à un préfiltre 27. Une colonne porteuse 3 s'étend vers le haut à partir du caisson 2 et une hotte 4 part de la partie supérieure 31 de cette colonne 3 pour venir se positionner au-dessus du caisson 2. La hotte 4 est munie d'un filtre 42 et d'une grille de distribution 45. L'invention est particulièrement destinée à être utilisée dans les cabinets vétérinaires, services de pédiatrie ou unités de fabrication de micro-électronique. The unit for the production of sterile laminar flow with vertical circulation, according to the invention, comprises a mobile box 2 comprising the means of production and propulsion 21 of the air flow, associated with a prefilter 27. A carrier column 3 s' extends upwards from the box 2 and a hood 4 starts from the upper part 31 of this column 3 to come to be positioned above the box 2. The hood 4 is provided with a filter 42 and a distribution 45. The invention is particularly intended for use in veterinary surgeries, pediatric departments or microelectronics manufacturing units.

Extractor apparatus

The invention relates to an extractor apparatus (10), in particular a laboratory extractor apparatus, having a working region (13) and having a fan arrangement (26) for generating an air flow (27) or an inlet opening for an air flow (27) for the purpose of transporting away gases and/or particles from the working region (13), and having at least one surface which delimits the working region (13). The extractor apparatus (10) has a charging means (30) for ionizing the air flow (27) and/or for electrostatically charging the at least one surface.

Laboratory hood with venturi effect air intake device for anti-turbulent air flow control

In a laboratory hood system having a housing with an access window opening into an interior work chamber for performing laboratory processes, and an air circulation system for creating an air flow from the laboratory environment inwardly through the access window into the work chamber for preventing hazardous materials from escaping into the laboratory environment through the access window, one or more air intake control devices are disposed in a selected location or locations at the access window to overcome any tendency for air turbulence to occur. The air intake control device has an air flow channel extending from an air intake opening to the laboratory environment to an air discharge opening to the work chamber, with a constriction in the channel for causing a venturi-effect increase in air velocity while flowing through the channel to promote non-turbulent air flow entering the work chamber at the selected location or locations.

WORKING CABIN FOR STONE SIZING, WITH CONTROLLED ATMOSPHERE

La présente invention a pour objet une cabine de travail pour la taille de pierre.Cabine caractérisée en ce qu'elle est à atmosphère contrôlée et en ce qu'elle se présente essentiellement sous forme d'une enceinte fermée (1), disposée sur une partie de base (7) formant support et surface de circulation et comportant au moins un poste de travail (2), cette enceinte étant reliée, d'une part, à au moins un moyen (3) d'introduction forcée d'air de renouvellement et/ ou de chauffage et, d'autre part, à au moins un moyen (4) d'extraction et de traitement d'air vicié.L'invention est plus particulièrement applicable dans le domaine de l'industrie de la taille de pierres. The present invention relates to a working cabin for stone cutting. Cabin characterized in that it has a controlled atmosphere and in that it is essentially in the form of a closed enclosure (1), arranged on a base part (7) forming a support and circulation surface and comprising at least one work station (2), this enclosure being connected, on the one hand, to at least one means (3) of forced introduction of air from renewal and / or heating and, on the other hand, at least one means (4) for extracting and treating stale air. The invention is more particularly applicable in the field of the size industry. stones.

Laboratory fume cupboard

The invention relates to a laboratory fume cupboard (100) comprising, connected in a moveable manner with a laboratory housing (60), a sash (30) for opening and closing a fume cupboard interior, in which between the sash (30) and a side post (10) of the laboratory housing (60) an air opening (70) is provided which is designed for producing wall flows in the interior of the fume cupboard.

Patent FR2334432B3

SUCTION DEVICE FOR A TANK

WORKPLACE

Suction cowl with filter panel - has heater in front of panel and deflector returning gases to it

The suction cowl has a filter panel in the front face for the gases drawn in by a fan inside the housing. On the top edge of the housing is a hinged shutter with front and side sections, there being a transparent parel in the front section. In front of the filter panel (2) is a heater (17), and the housing has a deflector (19) returning the filtered gases propelled by the fan (5) to the base of this heater. The deflector can be attached to the housing top face, having a pivoting shutter (21) at this point to control the air pressure. There can be a further adjustable shutter on the deflector to regulate combustion.

Portable hood for removing fumes - has folding top and base with fan in body drawing fumes through filter for rear discharge

The hood is portable and is used to evacuate fumes arising when working. Its body (1) is a metal and has a front panel (2) provided with large holes and backed by a suitable filter. Behind this is a fan which exhausts the fumes directly at the rear, or through a duct. A front flap (11) can hinge down (12) to form a working surface. A larger flap (5) can also hinge upwards, its sides (6, 16) being folded down to form a fume collector. The front (7) of this has a transparent viewing panel (8) and a light may be fitted. Thumbscrews (10) permit this to be tightened into position.

SUCTION DEVICE FOR A TANK

L'invention se réfère à un dispositif d'aspiration pour une cuve (1) avec un bord (3, 6), des moyens d'aspiration (9, 12, 14) étant placés sur au moins une partie du bord (3, 6). Une paroi latérale (4) est apposée sur au moins une partie du bord (3) reprenant les moyens d'aspiration (9, 12, 14). Un bord d'un couvercle (2) peut être posé sur une partie supérieure (8) de la paroi latérale (4) tournée vers l'intérieur de la cuve (1). Les moyens d'aspiration comportent une paroi latérale (4) et un canal d'aspiration (9) qui est accouplé à un système d'aspiration comportant une ou plusieurs ouvertures d'aspiration (12, 14), les ouvertures d'aspiration (12, 14) étant disposées de préférence sous le bord d'un couvercle (2). The invention relates to a suction device for a tank (1) with an edge (3, 6), suction means (9, 12, 14) being placed on at least part of the edge (3, 6). A side wall (4) is affixed to at least part of the edge (3) taking up the suction means (9, 12, 14). One edge of a cover (2) can be placed on an upper part (8) of the side wall (4) facing the interior of the tank (1). The suction means comprise a side wall (4) and a suction channel (9) which is coupled to a suction system having one or more suction openings (12, 14), the suction openings ( 12, 14) being preferably arranged under the edge of a cover (2).

a method for controlling face velocity of fume hood

본 발명은 흄후드가 도어의 개방상태에 따라 송풍기 및 댐퍼를 조작하여 컨트롤러에 미리 저장되는 면풍속값을 유지하도록 하고, 초기화 시험에 의한 도어의 최대 열림시 면풍속값이 유지되는 회전수 및 댐퍼의 회전각을 측정하며, 측정된 회전수 및 회전각에 의해 일정 면풍속에서 도어의 열림정도에 따른 회전수 및 회전각을 보정토록 하는 흄후드의 면풍속 제어방법에 관한 것이다. The present invention allows the fume hood to maintain the surface wind speed value stored in advance in the controller by operating the blower and the damper according to the open state of the door, and the rotational speed and damper at which the surface wind speed value is maintained at the maximum opening of the door by the initialization test. The present invention relates to a method for controlling the surface wind speed of a fume hood to measure the rotational angle of the fume hood and correct the rotational speed and rotation angle according to the degree of opening of the door at a certain surface wind speed by the measured rotational speed and rotation angle.

A work bench

Fume hood for laboratory

本申请涉及一种实验室用通风柜，涉及通风柜的技术领域，其包括柜体，柜体包括底柜、试验台和顶柜，试验台位于底柜与顶柜之间，且试验台与底柜、顶柜固定连接，顶柜的顶部开设有与抽风设备相连通的抽风口，顶柜内部安装有导流板，导流板上开设有条状的导流孔，抽风口与导流板、顶部内壁之间形成的腔室连通，顶柜的开口处滑移设有调节顶柜开口大小的玻璃视窗，顶柜的开口两侧对称开设有竖直设置的滑移槽，每一滑移槽内分别滑移插接有至少四块安装板，安装板可在滑移槽内随机组合排布，其中一块安装板上安装有控制面板，顶柜的上下两端均固定有对滑移槽内安装板进行固定的挡板。本申请具有提高实验人员使用通风柜的舒适性。

Clean air working enclosure - has cooler at inlet of fan delivering air to passage at back of hood

A worktable is surrounded by a three sided rectangular hood. A fan (6) delivers air into a passage at the back of the hood from which it flows along the side and through openings in the side across the hood. The main flow (4) is horizontally through the hood itself. Vertical plates (8, 9) delimit a narrow opening in the side at the front of the hood through which a smaller part (3) of the air flows to form a laminar air curtain between the operator and the working area. There is a chiller (7) on the other side of the hood on the fan inlet. Cooling the air prevents natural convection from pulling the air curtain away from the front of the hood.

Improvements to fume cupboards

SORBONNE OF LABORATORY

METHOD AND DEVICE FOR THE CLOSE PROTECTION OF A WORKTOP USING A CLEAN AIR FLOW

The work surface to be protected (1) is cleared and accessible both from above (102) and at least on one side, called the free side (100). The method is characterised in that clean air is continuously blown above the work surface (1) from the side (101) opposite the free side (100), in the form of a substantially horizontal flux that sweeps across the work surface (1), towards the free side (100), and which has a speed gradient such that the upper layer - or top stream - (V1) has a speed substantially greater than the air flowing in the proximity of the top surface (10) of the work surface (1); the totality or the main part of the flux is drawn from the free side (100), by means of a suction vent (20) extending along and immediately adjacent to the edge (10b) of the work surface (1). The invention is useful for protecting a fixed or mobile surface supporting various articles sensitive to the contamination of the ambient air.

PERFECTED WORKSHOP FOR PROSTHESISTS

FILTER AIR DIFFUSER

DEVICE FOR CONTROLLING FRONT AIR PASSAGE SPEED IN THE PLAN OF THE MOBILE FACADE OF A SORBONNE

Work station for performing e.g. fractionation operation, has blower unit generating frontal air flow, and another blower unit generating air flow from and at proximity of opening in direction of manipulation zone

The work station has a blower unit (4a) that generates a frontal air flow, which is vertical, for constituting a frontal protection screen for an operator. A blower unit (4b) generates an air flow from and at proximity of an opening (3) in a direction of a manipulation zone (9). The frontal air flow generated by the unit (4a) converges towards the interior of an enclosure that is driven by the air flow generated by the unit (4b). The unit (4b) is placed at the level of an upper position of the opening and the unit (4a) is placed at the level of a bottom position of the opening.