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| Number | Title | Issue Date |
| 7819727 | Push-pull type ventilation hood The present invention is a push-pull ventilation hood having a push device to obtain a push air flow and a pull device to exhaust contaminant flow with an exhaust opening and the two devices properly coordinated with each other, wherein, when the push flow flows thr... | 10/26/2010 |
| 7766732 | Ductless fumehood system A ductless fumehood system comprising: at least one ductless fumehood comprising a housing; a workspace formed within the housing; a door for selectively closing off the workspace; an air inlet for introducing air into the workspace; a master module for receiving ai... | 08/03/2010 |
| 7677961 | Fume hood drive system to prevent cocking of a sash A fume hood comprised of first and second side walls, a back wall, a work surface, and a top wall, the walls and work surface defining a work area, an access opening for providing a user access to the work area, a movable sash member disposed for vertical movement a... | 03/16/2010 |
| 7381127 | Apparatus for transferring hazardous material An apparatus is described for transferring hazardous material between the interior of a container and the chamber of a fume hood having a port that includes a flexible enclosure with an upper surface, a lower surface and a side surface; a first conduit extending fro... | 06/03/2008 |
| 7347773 | Silencer for fume extracting hoods The silencer for fume extracting hoods is comprised of a panel (1) consisting of a lower tray (4), an insulating intermediary sheet (5), and an upper or porous filling foamed material (6) acting as a sound absorbing and limiting or dampin... | 03/25/2008 |
| 7320636 | Exhaust fan assembly having flexible coupling An exhaust 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 w... | 01/22/2008 |
| 7318771 | Air-isolator fume hood The present invention is a fume hood capable of exhausting contaminant, having an air pipe in a sash and a suction slot corresponding to the air pipe deposed at the front rim of the bottom surface to obtain an air curtain, where contaminant is efficiently prevented ... | 01/15/2008 |
| 7275533 | Pressure controller for a mechanical draft system Systems and method for controlling the flow of air through a mechanical draft system are disclosed herein. A pressure controller for controlling air pressure comprises an appliance controller configured to control the operation of a plurality of appliances, an intak... | 10/02/2007 |
| 7255525 | Online, safe service technique for automated libraries A safety system for online servicing of a media library is provided, wherein the library comprises a plurality of media storage cells and at least one media picker robot that moves along the media storage cells, and wherein the library is contained within an enclosu... | 08/14/2007 |
| 7247087 | Fume hood with air directing member A fume hood adapted to be connected to an exhaust system, the fume hood including a cabinet formed with a chamber having a generally flat bottom wall and a sash door mounted at the front end of the chamber for movement in a vertical plane to provide an access openin... | 07/24/2007 |
| 7217183 | Turbulence-free laboratory safety enclosure The present invention relates to controlled airflow and air distribution within a laboratory safety enclosure and in particular, to turbulence-free airflow within a laboratory fume hood. The fume hood of the present invention has a work chamber and an access opening... | 05/15/2007 |
| 7198567 | Desktop-type ventilation system A desktop-type ventilation system generally includes a ventilation hub having at least one vent and at least one fume hood connected thereto. The fume hood(s) generally include a pair of side walls, wherein each is disposed at an angle for directing and causing air ... | 04/03/2007 |
| 7156919 | Portable metallizing spray booth A bottom tray is supported by four wheels and is spaced apart from a bottom surface of a top frame member having two side walls and a back wall enclosing a grated work surface. A pair of pressurized tanks containing ingredients for metallizing an object are mounted ... | 01/02/2007 |
| 7147553 | Portable smoking room A portable smoking room having a flexible enclosure defining a room detachably mounted on a frame is provided. A duct is detachably mounted to the frame for transporting smoke laden air within the flexible enclosure outside of the flexible enclosure. A fan detachabl... | 12/12/2006 |
| 7131398 | Air flow sensing and control for animal confinement system An environmental monitoring and controlling system for a ventilated cage and rack system that monitors and measures air flow in the rack at either the rack or cage level. At the rack level, two pressure sensors are provided in a supply air system to accurately monit... | 11/07/2006 |
| 7090709 | Safety cabinet for antibiohazard A safety cabinet which can prevent contaminated air from leaking from a working space through the periphery of a front shutter, and which can prevent outside air from entering the working space has a peripheral structure part surrounding the working space formed wit... | 08/15/2006 |
| 7077486 | Enclosure for handling hazardous material An enclosure for handling hazardous material includes a sealable housing which is configured with a first air inlet connected to a bubble gauge and a second air inlet disposed inside the housing for air evacuation from the housing is connected to a pump for maintain... | 07/18/2006 |
| 7073442 | Apparatus, systems and methods for use in three-dimensional printing Apparatus, systems and methods for use in three-dimensional printing are shown and described. Various embodiments of the invention allow for more precise and controlled delivery of heat to achieve interlayer drying; isolation of the working region from the outside f... | 07/11/2006 |
| 7048625 | Clean bench for cleaning atmosphere of partitioned space A substantially cubic work space extends from an upper opening to the interior of a housing. A substantially cubic lower space extends from a lower opening to the interior of the housing. A front cover covering the upper opening is provided on the front of the work ... | 05/23/2006 |
| 7022151 | Safety cabinet for antibiohazard A safety cabinet which can prevent contaminated air from leaking from a working space through the periphery of a front shutter, and which can prevent outside air from entering the working space has a peripheral structure part surrounding the working space formed wit... | 04/04/2006 |
| 7014672 | Carrying vehicle, manufacturing apparatus, and carrying system According to the present invention, in a carrying system comprising a carrying vehicle and a manufacturing apparatus the interior of which is kept cleaner than a surrounding environment, manufactured articles to be transferred are prevented from being contaminated b... | 03/21/2006 |
| 7001263 | Air flow monitoring and control system with reduced false alarms An air flow monitoring and control system with reduced false alarms includes an alarm sensor for monitoring air flow in a fume hood or the like, set to provide a warning if air flow drops below a predetermined amount. A local controller monitors the alarm, and disab... | 02/21/2006 |
| 6994619 | Optical sash sensing system for fume hoods A fume hood optical sash sensing system for controlling the flow of air into a fume hood to maintain a constant face velocity by utilizing an optical sensing device mounted inside the fume hood that can sense the movement of a sash based on repeatable reflexive tape... | 02/07/2006 |
| 6974375 | Double vent dust collection hood with inspection lighting, storage shelf and sandpaper dispensers A sanding hood has a bottom vent for above a bottom shelf attached to a sanding bench with the shelf aligned with the top of the bench. A series of halogen lights attach above the bottom vent to shine on the bench. An upper shelf above the lights shields the worker'... | 12/13/2005 |
| 6974380 | Laboratory air handling unit The invention is an air handling system that is shared between a laboratory and offices within the same building. The normally separate office and lab systems have been combined by way of an air return system that draws air from the offices and feeds into both the o... | 12/13/2005 |
| 6968993 | Mailbox assembly A mailbox assembly includes a housing including a bottom wall, a first side wall, a second side wall, and a back wall. A front wall is hingedly coupled to the housing and defines a first door for selectively opening or closing the housing. A top wall is attached to ... | 11/29/2005 |
| 6960126 | Wireless communication for fume hood control A method and apparatus for controlling a fume hood. A containment condition, i.e., a condition that may affect containment of potentially harmful substances in the hood, may be detected, and information regarding the detected condition sent by wireless signal. A fum... | 11/01/2005 |
| 6945244 | Range hood The present invention relates to a range hood for evacuating air or emitted gas, which contains oily smoke and the like generated by cooking on a range, to the outside of a house. ... | 09/20/2005 |
| 6935341 | Irrigation drape A disposable surgical kit for use with a lavage instrument provides a three dimensional enclosure to capture splash back and aerosols created by the procedure. The kit has a transparent surgical drape to be fitted to a lavage instrument. The drape has an opening for... | 08/30/2005 |
| 6923715 | Device for regulating the air volume flow for a vent in a laboratory A device for regulating the air volume flow for a laboratory exhaust, has a rectangular housing (6) which can be arranged on the laboratory exhaust. The device is equipped with inflow devices that can be connected to the interior of the laboratory exhaust and... | 08/02/2005 |
| 6899668 | Airborne pathogen isolation system and method An apparatus for isolating airborne pathogens created during a procedure performed on an individual's extremity includes a transparent, dome-shaped shield having first and second openings therein to allow two individuals to insert their respective extremities into t... | 05/31/2005 |
| 6886554 | Fume exhaust apparatus for cooking stoves A fume exhaust apparatus for cooking stoves includes a fixing base; a connection assembly pivotally mounted on the fixing base; a transparent hood assembled with a lower end of the connection assembly, and having a handle and a through hole; a fume-exhaust hose havi... | 05/03/2005 |
| 6871170 | Turbulence-free laboratory safety enclosure The present invention relates to controlled airflow and air distribution within a laboratory safety enclosure and in particular, to turbulence-free airflow within a laboratory fume hood. The fume hood of the present invention has a work chamber and an access opening... | 03/22/2005 |
| 6821200 | Low-cost/disposable hazardous material handling and anti-contamination hoods Low-cost, potentially disposable, hazardous material handling and anti-contamination hoods are described, that provide a very high level of protection of either personnel, in the case of a hazardous material handling hood, or the process contained in the hood in the... | 11/23/2004 |
| 6814658 | Automatic sash return for work chamber A counterweight apparatus is provided for automatically self-returning an enclosure sash or other closure member to at least one preselected intermediate position when released after being opened beyond that intermediate position and for selectively maintaining the ... | 11/09/2004 |
| 6802767 | Local exhausting and ventilating methods, and local exhausting device and local ventilating system The object of the present invention is to provide exhaust air discharging and ventilating technologies capable of completing local ventilation without affecting the habitability and workability. The invention is a method for locally discharging the air around... | 10/12/2004 |
| 6797029 | Process facility having at least two physical units each having a reduced density of contaminating particles with respect to the surroundings In a process facility for producing semiconductor wafers, a third physical unit is configured between two physical units that produce mini environments. The third physical unit has a laminar flow at right angles to the laminar flows of the two physical units and is ... | 09/28/2004 |
| 6752711 | Motor housing for range hood A range hood with a motor housing having upper and lower sections joined together along their respective side edges. Cooperating projections with a gap therebetween extend from the side edge of one section of the motor housing. The side edge of the other section of ... | 06/22/2004 |
| 6739967 | Fume hood management system A fume hood management system includes a collection section and a server apparatus. The collection section collects data representing an operation state from a plurality of fume hoods. The server apparatus includes an arithmetic section. The arithmetic section calcu... | 05/25/2004 |
| 6692346 | Fume hood with alarm system A fume hood includes a top, bottom sidewalls, front panel and a back panel that define an enclosed workspace. The fume hood also includes a movable sash for opening and closing an access opening. The fume hood may also include an air chamber having an inl... | 02/17/2004 |
