Class / Patent application number | Description | Number of patent applications / Date published |
454056000 | Covered workbench chamber (e.g., fume hood, etc.) | 47 |
20090156112 | TOXIC GAS EXPOSURE PREVENTING SYSTEM FOR ANATOMIC PRACTICE ROOM - A toxic gas exposure preventing system for an anatomic practice room is provided which not only can obtain a satisfactory toxic gas exposure preventing effect without impairing workability but also permits the use of existing dissecting tables as they are without requiring any special work such as an exhaust duct installing work. | 06-18-2009 |
20090191803 | FUME HOOD SYSTEM HAVING AN AUTOMATIC DECOMMISSION MODE - A fume hood system having a decommissioned mode. A fume hood may be required to maintain a minimum flow from its enclosure holding fume type substances via an exhaust external to the hood. However, if the fume hood is considered not in use or not containing fume type substances, it may be put into a decommissioned mode not necessarily having a flow requirement. This mode may be entered by pressing a sequence of buttons on a monitor, operating a switch, receiving a signal from a building management system, or the like, provided that certain criteria for non-use are met by the fume hood. The decommissioned mode may also be entered or exited automatically. Status of the fume hood, as to in-use or decommissioned, may be reported to a building management system for monitoring, reporting, and/or command purposes. | 07-30-2009 |
20100248603 | Retrofit Fume Hood Drive Assembly - A fume hood having a retrofit drive assembly includes an elongated lifting piece, such as a toothed rack, which attaches to a fume hood sash at connection point that minimizes stress on the sash. The retrofit drive assembly also includes a drive motor driven rotary engagement member, such as pinion, for opening and closing the sash. This arrangement allows for easy field retrofit, and requires limited intrusion from behind the upper regions of the existing fume hood. | 09-30-2010 |
20100267321 | Air curtain-isolated biosafety cabinet - A biological safety cabinet (BSC) has an air curtain to isolate air inside and outside the BSC. A most preferable slight concave curtain of air can be obtained. With the curtain, neither contamination in the BSC leaks out nor outside contamination enters the BSC. Furthermore, no circulation is formed in the BSC by blowing the air curtain. Thus, the operator using the BSC and the product in the BSC are both well protected. | 10-21-2010 |
20100291849 | Exhaust Fan Assembly - An exhaust fan assembly is provided for expelling contaminated air from a building. The assembly includes a plenum, a fan assembly attached to the plenum, and a windband mounted on top of the fan assembly. The fan assembly is constructed of cylindrical outer and inner walls which define a bearing chamber and surrounding annular space. A fan driven by a shaft extending downward from the bearing chamber draws exhaust air from the plenum and blows it up through the annular space to a nozzle at the top of the fan assembly. | 11-18-2010 |
20110081850 | FUME HOOD HAVING V-SHAPED BAFFLE - An elongated, cantilever baffle for a fume hood is provided. The baffle has a V-shaped bottom, including a right bottom portion and a left bottom portion that form a substantially horizontal edge. The baffle also has a substantially vertical left wall and a substantially vertical right wall. The substantially vertical left wall has a top edge and a bottom connected to the left bottom portion of the V-shaped bottom. The substantially vertical right wall has a top edge and a bottom connected to the right bottom portion of the V-shaped bottom. | 04-07-2011 |
20120077425 | Accessible Hood Sash - The present invention provides an apparatus and various embodiments thereof which allow the user of a laboratory fume hood to operate equipment and conduct experiments, while keeping the hood sash in a closed position. | 03-29-2012 |
20120171941 | SUBSTRATE PROCESSING APPARATUS AND SUBSTRATE PROCESSING METHOD - By exhausting a gas in a second space (S | 07-05-2012 |
20120220211 | FUME HOOD HAVING A SLIDING DOOR - A fume hood includes a plurality of walls. In one embodiment, the fume hood has a ceiling substantially perpendicular to a first wall of the plurality of walls and an L-shaped sliding door having a lower portion substantially parallel to the first wall and an upper portion substantially perpendicular to the lower portion. The fume hood also has at least one actuator configured to move the L-shaped sliding door between an open position and a closed position. In other embodiments, the door may have different shapes. | 08-30-2012 |
20120258653 | TRANSPORTABLE FIELD CONTAINMENT SYSTEM WITH TRANSPARENT HOOD - A transportable field containment system with transparent hood. The transportable field containment system being easily and rapidly deployable and transportable by virtue of its relatively small size and light weight, a collapsible transparent hood that covers the containment area over a work site on the ground, the hood including detachable or folding side panels and removable door panels. The system preferably includes an exhaust component that creates negative air pressure in the containment area under the hood, thereby drawing air that contains hazardous substances, that may be released while the work is being conducted, through one or more off-gas filters. | 10-11-2012 |
20120270488 | ROOM PRESSURE CONTROLLING SYSTEM - A room pressure controlling system having a supply air valve, a common exhaust air valve, controllers, and a differential pressure sensor. The controller gradually changes a supply and an exhaust airflow rates when there is an airflow rate change controlling operation, and calculates, based on a setting value and a pressure difference that is measured by the differential pressure sensor, a correction control output value for the valve being operated as the room pressure controlling valve, and if the sum value of the control output value and the correction control output value is a value that causes operation of the room pressure controlling valve in the direction opposite of the desired direction, suspends the output of the sum value, but if the value causes the room pressure controlling valve to operate in the desired direction, outputs the sum value to the room pressure controlling valve. | 10-25-2012 |
20120322353 | FUME HOOD - A fume hood used in either a laboratory or industrial setting, the fume hood includes a cabinet formed with a chamber having a generally flat work surface, an open face and a sash door assembly for reciprocally opening and closing the open face. The fume hood further includes an airfoil directing airflow through the open face and into the chamber. A baffle is disposed in the fume hood. The baffle has a plurality of rows of regularly laterally spaced apertures wherein the rows are regularly spaced apart along the length of the baffle. The fume hood further includes an exhaust outlet from the chamber. | 12-20-2012 |
20130052927 | Laboratory Fume Hood With A Projection Apparatus - The present invention relates to a laboratory fume hood, especially a safety cabinet, comprising a working space which is enclosed by a housing and which is closable by an especially movable front window. It comprises a projection apparatus in order to project an image into the working space. | 02-28-2013 |
20130090049 | 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. | 04-11-2013 |
20130244555 | OPTIMIZED AIRBORNE COMPONENT EXTRACTOR - A component extractor system includes a source of a positive pressure air stream and a source of a negative pressure air stream. Conduits convey the air streams to and from a work area where one or more nozzles create a capture region and draw airborne components into the system. The system is optimized in terms of flow ratios, dimensions of the conduits and elements of the nozzle, and so forth. | 09-19-2013 |
20130331018 | 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. | 12-12-2013 |
20140106657 | 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. | 04-17-2014 |
20140120819 | 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 provided to the ventilation device may depending on the current size of the fume hood opening as captured by the image capture sensor. | 05-01-2014 |
20140179210 | WELDING FUME COLLECTOR - A welding fume collector is disclosed that includes a sheath, fume collection opening and vacuum hose. A welding torch extends through the sheath with the nozzle extending beyond the distal end of the sheath. The fume collection opening is at the distal end of the sheath. The vacuum hose extends into the proximal end of the sheath. A vacuum system creates a negative pressure inside the sheath which extends out through the collection opening to collect fumes. The collection opening can be generally elliptical with a major axis extending along the welding direction. The vacuum system, vacuum hose and sheath can be sized to create the desired vacuum to collect welding fumes without interfering with the welding process. The diameters of the vacuum hose and sheath can be sized to create low-speed welding fume collection through the collection opening. The vacuum system can include a self-cleaning filter. | 06-26-2014 |
20150056904 | 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:
| 02-26-2015 |
20150072603 | Controlled Atmosphere Workstation - A controlled atmosphere workstation comprising a transparent housing ( | 03-12-2015 |
454057000 | Having air inlet separate from access opening | 10 |
20090061751 | Dynamic barrier isolation chamber - The invention concerns an isolation chamber for isolating substances from the ambient while simultaneously maintaining aseptic conditions within the isolation chamber and protecting the operator from potent compounds. The isolation chamber comprises a first container surrounding and defining an isolation space of holding the substances and a second container surrounding the first container. Preferably, the pressure of the isolation space is lower than the pressure of the barrier space. | 03-05-2009 |
20090215376 | LABORATORY CONTAINMENT SYSTEM - A laboratory bench-top fume hood comprises an enclosure containing a working chamber with a frontal opening for manual access and airflow into the chamber. A plenum behind the working chamber is connectable to an air extraction system. An apertured, curved baffle plate separates the working chamber from the plenum, and is convex from the plenum side, improving airflow and increasing usable volume of the working chamber. Slots in the baffle plate may be fitted with guide vanes extending into the plenum. A slot adjacent a roof of the working chamber is effective for creating evenly-distributed air flows. The roof may be curved to encourage an airflow to follow the roof profile to the baffle plate. Sidewalls of the working chamber may bow outwardly but converge towards the opening. The baffle plate may comprise a set of separately dismountable panels, to aid cleaning and provide access to the plenum. | 08-27-2009 |
20100216382 | APPARATUS FOR PROVIDING COOLANT FLUID - An apparatus for providing coolant fluid to a device, the apparatus includes a heat exchanger having a hot side and a cold side. The cold side is in fluid communication with a chilled fluid supply and adapted to receive a first fluid from the chilled fluid supply in a first inlet and return the first fluid from the cold side to the chilled fluid supply. The cold side and the chilled fluid supply form a first fluid circuit. The apparatus further includes a second fluid circuit in fluid communication with the hot side, means for introducing a second fluid within the second fluid circuit and integral thereto, a pump integral to the second fluid circuit and adapted to transmit a second fluid within the second fluid circuit and means for controlling a rate of flow of the second fluid within the second fluid circuit. The device is within the second fluid circuit and the means for controlling the rate of flow operates in the absence of internal recirculation. | 08-26-2010 |
20110021128 | 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. | 01-27-2011 |
20110281514 | APPARATUS FOR DIRECTING AIR FLOW IN A BIOLOGICAL SAFETY CABINET - A biological safety cabinet with several air flow directional control enhancements. A perforated air intake grille within the work chamber inwardly adjacent the user access opening has a forwardly facing make-up air intake surface and a rearwardly facing internal air intake surface angled in converging relation to promote a physical division between intake of ambient air and internal air into the cabinet's air recirculation system. An aerodynamic user arm rest is affixed to a support stand to extend alongside the access opening at a spacing outwardly from the housing to assist in directing make-up air to the ambient air intake opening without cross-contamination between the arm rest and the work chamber. An air transmission grille above the work chamber has a horizontal main extent terminating at a spacing from the sash and an upwardly angled extent adjacent the sash to direct increased laminar air flow downwardly along the sash. | 11-17-2011 |
20120156978 | CLEAN WORKTABLE - A clean worktable includes a support body, a work platform, a bellows, a front workspace, and a second workspace. The work platform and the bellows are positioned on the support body. The front workspace is opposite to the back workspace. The work platform has a first region in the front workspace and a second region in the back workspace. The bellows provides airflow to the first region and the second region for removing dust and the clean worktable enables two workers to function simultaneously. | 06-21-2012 |
20130143477 | SAFETY CABINET - A safety cabinet adaptable for a variation in body height of a worker using the safety cabinet, that is, a safety cabinet which prevents various bacteria from proceeding from the outside of the safety cabinet into a working space of the safety cabinet and prevents bacteria or virus from proceeding from the working space to the outside of the safety cabinet irrespective of a change in opening area of a front opening, is provided. | 06-06-2013 |
454058000 | Including flow adjustment means | 2 |
454059000 | Responsive to position of access door | 2 |
20120178354 | Safety Cabinet - A safety cabinet adaptable for a variation in body height of a worker using the safety cabinet, that is, a safety cabinet which prevents various bacteria from proceeding from the outside of the safety cabinet into a working space of the safety cabinet and prevents bacteria or virus from proceeding from the working space to the outside of the safety cabinet irrespective of a change in opening area of a front opening, is provided. | 07-12-2012 |
20150367389 | 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. | 12-24-2015 |
454060000 | And air outlet through access opening | 1 |
20130244556 | AIRBORNE COMPONENT EXTRACTOR WITH IMPROVED FLOW PATHS - A component extraction system utilized a base unit that produces a positive pressure air stream and that draws a negative pressure air stream into the base unit. To enhance performance, and reduce head requirements and power consumption, a number of bends in the flow paths is minimized in the base unit. | 09-19-2013 |
454061000 | Having outlet airway flow adjustment means | 16 |
20080274683 | Autonomous Ventilation System - An autonomous ventilation system includes a variable-speed exhaust fan, a controller, an exhaust hood, and a spillage sensor. The exhaust fan removes air contaminants from an area. The controller is coupled to the exhaust fan and adjusts the speed of the exhaust fan. The exhaust hood is coupled to the exhaust fan and directs air contaminants to the exhaust fan. The spillage sensor is coupled to the controller, detects changes in an environmental parameter in a spillage zone adjacent to the exhaust hood, and communicates information relating to detected changes in the environmental parameter to the controller. The controller adjusts the speed of the exhaust fan in response to information relating to detected changes in the environmental parameter. | 11-06-2008 |
20080318509 | SAFETY WORKBENCH AND METHOD FOR THE CALIBRATION THEREOF - The present invention relates to a safety workbench, in which, for the purpose of calibrating the safety workbench before beginning regular operation, a device control unit is implemented to cause measurement means to ascertain an actual measured value, which is representative of a flow velocity achieved at normal fan performance, an analysis unit is implemented to compare the actual measured value to a starting setpoint value and, in case of an established deviation, to correct a stored starting limiting value in accordance with the deviation, or means for controlling the fan are implemented to operate the fan at a fan performance corresponding to a stored starting limiting value, a device control unit is implemented to cause the measurement means to ascertain an actual limiting measured value which is representative of the flow velocity achieved at the set fan performance, and a storage unit is implemented to store the actual limiting measured value as the corrected limiting value. Furthermore, the present invention relates to a corresponding calibration method. | 12-25-2008 |
20090061752 | Autonomous Ventilation System - An autonomous ventilation system includes a variable-speed exhaust fan, a controller, an exhaust hood, and an infrared radiation (“IR”) sensor. The exhaust fan removes air contaminants from an area. The controller is coupled to the exhaust fan and adjusts the speed of the exhaust fan. The exhaust hood is coupled to the exhaust fan and directs air contaminants to the exhaust fan. The IR sensor is coupled to the controller, detects changes in IR index in a zone below the exhaust hood, and communicates information relating to detected changes in IR index to the controller. The controller adjusts the speed of the exhaust fan in response to information relating to detected changes in IR index. The autonomous ventilation system also includes an alignment laser to indicate a point at which the IR sensor is aimed and a field-of-view (“FOV”) indicator to illuminate the zone in which the IR sensor detects changes in IR index. | 03-05-2009 |
20090264060 | RECIRCULATING EXHAUST SYSTEM - Systems, devices and methods provide energy recover, modular systems to build and revise commercial kitchen services, closed circuit exhaust, and high efficiency capture and containment of fumes from cooking processes. | 10-22-2009 |
20100216383 | Sash operating device for fume hoods - The invention is a sash operating device for a fume hood having a moveable sash. The sash operating device automatically closes the sash when a user is not near the sash for a predetermined period of time. The device may be manually controlled by the user to open, close or vary the size of the sash opening. The sash operating device has a drive wheel which contacts the sash with a normal force such that the device can open and close the sash. | 08-26-2010 |
20100291850 | Variable Volume Air-Flow Exhaust System - Disclosed is a smart and adaptive laboratory hood or building exhaust air system and related methods of use. | 11-18-2010 |
20110053483 | EXHAUST APPARATUS, SYSTEM, AND METHOD FOR ENHANCED CAPTURE AND CONTAINMENT - A ventilation exhaust intake device is located at ceiling level of a production space and has a low profile form with combination of vertical and horizontal jets. Recesses and other feature are provided to enhance capture and containment and other functional aspects. Certain embodiments include a light source adjacent the jet registers. | 03-03-2011 |
20110244775 | APPARATUS AND METHOD FOR CONTROLLING AND DIRECTING FLOW OF CONTAMINATED AIR TO FILTERS AND FOR MONITORING FILTER LOADING IN A BIOLOGICAL SAFETY CABINET - An improved system and method for monitoring contamination loading of a filter in a biological safety cabinet comprising a housing defining a work chamber and a filtration chamber, a system for circulating air between the work chamber and the filtration chamber via a fan which draws air under negative pressure from the work chamber and delivers the air under positive pressure through the filter and into the filtration chamber. The filter monitoring system determines a pressure differential between the negative and positive air pressure at opposite sides of the fan, and evaluates the degree of contamination loading of the filter on the basis of the pressure differential. An air flow baffle is disposed within the filtration chamber adjacent the fan for dividing the pressurized air delivered by the fan and partially redirecting a portion thereof for more uniformly delivering the air to the filter. | 10-06-2011 |
20120289139 | ROOM PRESSURE CONTROLLING SYSTEM - A room pressure controlling system having a local exhaust valve, a supply air valve, a common exhaust air valve, controllers and a differential pressure sensor. The controller calculates a correction control output value for the valve operated as the room pressure controlling valve, which is either the supply air valve or the common exhaust air valve, based on a setting value and a room pressure measured by the differential pressure sensor. The controller evaluates whether or not the supply airflow rate and/or the exhaust airflow rate is changing, and if an airflow rate is changing, emphasizes rapid responsiveness of the room pressure control than a reduction in the frequency of actuation of the room pressure controlling valve, if the airflow rate is stable, the controller emphasizes the reduction in the frequency of actuation of the room pressure controlling valve than the rapid responsiveness of the room pressure control. | 11-15-2012 |
20130035025 | CONTAINMENT HOOD - A containment hood may include a first shell portion, a second shell portion and a lid portion. The first shell portion may include a first interior-facing surface. The second shell portion may be spaced apart from the first shell portion and may include a second interior-facing surface. The first and second interior-facing surfaces may oppose each other. The lid portion may extend between and engage the first and second shell portions. The lid portion may cooperate with the first and second shell portions to form at least a partial enclosure defining an interior volume. The first and second shell portions and the lid portion may cooperate to define a first opening through which a user is able to access the interior volume. | 02-07-2013 |
20140080396 | 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. | 03-20-2014 |
20140273783 | 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. | 09-18-2014 |
20150017898 | 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. | 01-15-2015 |
20160252256 | REAL-TIME CONTROL OF EXHAUST FLOW | 09-01-2016 |
454062000 | Plural airways with adjustable distribution means | 2 |
20090298405 | LOW AIRFLOW EXHAUST CANOPY FOR BIOLOGICAL CABINETS - A canopy for a biological cabinet includes a plurality of openings, referred to as ports, covered by air dampers and designed to open and close as needed to reduce an overall volume of air required during normal operation. If the building exhaust system attempts to pull more air than is supplied by the cabinet, the intake dampers will open to allow room air in through the intake ports, thus helping the cabinet to maintain an acceptable level of intake airflow at its front access opening. If the building exhaust system does not pull a sufficient amount of air, the outlet damper will open and let the cabinet exhaust air escape through the outlet port, thus enabling the cabinet to maintain an acceptable level of intake airflow at its front access opening. The canopy may also include an internal air baffle that helps to capture the cabinet exhaust air and direct it out through the opening connected to the building exhaust duct. | 12-03-2009 |
20130244557 | AIRBORNE COMPONENT EXTRACTOR HOOD - An airborne component extraction system includes a source of a positive pressure air stream and a source of a negative pressure air stream. The air streams are directed through conduits to a hood that distributes the positive pressure air stream into a work area, and that draws the negative pressure air stream from the work area to remove airborne components within the work area. Aspects of the hood offer greatly enhanced performance in creating a controlled region for component removal and for drawing and removing the components for the work area. | 09-19-2013 |