Covered Workbench Chamber (e.g., Fume Hood, Etc.) Patents (Class 454/56)
  • Patent number: 11191343
    Abstract: The invention is a table top filtration device designed to filter noxious fumes on or near the table. In one embodiment, the tables are manicure and pedicure tables.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: December 7, 2021
    Assignee: Healthy Air, Inc.
    Inventors: Arya J. Zahedi, Karim Zahedi
  • Patent number: 11117232
    Abstract: The invention relates to a downdraft table (1) having a workpiece holder (2) for a workpiece to be held, wherein the workpiece holder (2) is configured in a stationary manner, wherein a suction-extraction device (3) is arranged beneath and/or next to the workpiece holder (2), said suction-extraction device (3) being used to discharge particles and/or gases downward in a waste air flow, wherein the suction-extraction device (3) is arranged around the workpiece holder (2) with respect to the latter and is configured to be rotatable about the workpiece holder (2).
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: September 14, 2021
    Assignee: ESTA APPARATEBAU GMBH & CO. KG
    Inventors: Sebastian Krater, Daniel Palmeiro-Rohleder
  • Patent number: 10960421
    Abstract: A feed center for powder coating material includes a hopper, an extraction duct, and a control valve. The hopper is in fluid communication with a fluidizing pressure source. The extraction duct is in fluid communication with at least one suction source. The control valve connects the extraction duct with an extraction port of the hopper. The control valve is operable between a first position for applying suction from the at least one suction source to the hopper, and a second position providing an exterior opening in at least one of the control valve and the first extraction duct for exhausting pressurized fluid from the hopper and/or collecting at least some of the air and powder that is exhausted from the powder.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: March 30, 2021
    Assignee: Nordson Corporation
    Inventors: Asim Altin, Antonius Petrus Maria De Veer, Kai Flockenhaus, Terrence M. Fulkerson, William R. Hoversten, Thomas Loparo, Klaus Michels, Richard William Vine
  • Patent number: 10926266
    Abstract: A housing for a laboratory appliance with a floor, ceiling, rear wall, side walls and front wall, which together enclose a work space. The front wall is movable between closed position and open positions. A work area in which liquids can be handled is provided in the work space. A filter device for ambient air is connected to the work space via at least one air outlet. At least one air inlet is connected to the environment, and a fan and an air filter are located downstream from the air inlet and upstream from the air outlet. An outflow opening is also located on the housing. The at least one air outlet and the at least one outflow opening are arranged on the housing such that, during operation of the filter device, the filter air stream flows substantially parallel to and along the work area.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: February 23, 2021
    Assignee: BRAND GMBH + CO KG
    Inventors: Christian Berberich, Steffen Gehrig, Thomas Howe, Martin Jungbluth, Peter H. Mahler, Benjamin Peszleg, Max Petek, Burkhard Schaub, Christian Weiner
  • Patent number: 10864514
    Abstract: A biological safety cabinet or the like according to an embodiment of the present disclosure includes: a bottom plate 4 provided in a body case 2; and a flexible portion 13 provided to a front shutter protector 6 that is provided to a lower end of the front shutter 5, and is capable of ensure reliability by reducing the load of the front shutter such that outside air is drawn into the body case 2 through a gap 15 formed in a contact portion between the flexible portion 13 and the bottom plate 4.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: December 15, 2020
    Assignee: PHC HOLDINGS CORPORATION
    Inventors: Ritaro Oguma, Shinji Sugimoto
  • Patent number: 10525458
    Abstract: With respect to a clean air device, in order to provide a device structure and an air cleaning unit inspecting method capable of supplying clean air through a filter and also capable of measuring the amount of dust in a workroom space in which blown air forms a laminar flow such that an increase in the amount of dust can be accurately detected, the clean air device comprises an air cleaning unit, a rectifying unit arranged downstream of the air cleaning unit configured to rectify air blown from the air cleaning unit and form a laminar flow, and a workroom arranged downstream of the rectifying unit, wherein at least one suction port is provided on a wall surface in a space formed between the air cleaning unit and the rectifying unit, configured to draw out the air in the space to an exterior.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: January 7, 2020
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Keiichi Ono, Hirotoshi Sato
  • Patent number: 10478873
    Abstract: A fume hood comprising: a hood, a work chamber, and a front wall formed with an opening toward an indoor environment; an air supply system, and an air exhaust system to discharge air that enters the work chamber through a front opening and enters the work chamber through the air supply system, out from the work chamber; the air supply system provided with at least one air supply outlet in an upper portion and a lower portion of the hood, and the air supply outlet supplying air towards the work chamber. The fume hood can reduce energy consumption of air conditioning and suppress overflowing of harmful substances in the work chamber, with a low installation cost and a high consistency of product quality.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: November 19, 2019
    Assignee: E3 Green Technology Co., Ltd.
    Inventors: Hongzheng Ruan, Guangye Tang, Bingli Lu
  • Patent number: 10203125
    Abstract: A flow rate controlling system includes: a flow rate balance determining portion that determines a supply flow rate, regulated by a supply air valve, and a common exhaust flow rate, regulated by a common exhaust air valve, so that a difference between the supply flow rate and an exhaust flow rate, regulated by the common exhaust air valve, matches a set point; a valve monitoring portion that monitors the supply air valve, the common exhaust air valve, and a local exhaust air valve; and a flow rate changing portion that issues a flow rate changing instruction to the flow rate balance determining portion. When there is a fault in the supply air valve and/or the common exhaust air valve, the flow rate balance determining portion, upon receipt of the flow rate changing instruction from the flow rate changing portion, changes neither the supply nor common exhaust flow rate.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: February 12, 2019
    Assignee: AZBIL CORPORATION
    Inventor: Nobuo Osawa
  • Patent number: 10184686
    Abstract: A system for maintaining a pollutant controlled workspace includes an airtight enclosure with a front access window. A set of impermeable exterior panels and a set of permeable interior panels are slidably mounted within the access window in a spaced apart relationship. Regulated either through a manual control panel or programmable controller, a fan filter unit treats a supply of source air and delivers the filtered air down into a narrow vertical airflow channel located between the exterior and interior panels. Once a suitable amount of pressure accumulates, the treated air penetrates into the workspace as a horizontal laminar flow. Any particulates present in the workspace are drawn rearward by the laminar flow and are trapped behind a multi-apertured back board. The contaminant air is then drawn from a low pressure return located behind the back board and into the fan filter unit for recirculation within the enclosure.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: January 22, 2019
    Assignee: CARPE DIEM TECHNOLOGIES, INC.
    Inventors: John S. Berg, Dimitur Benchev, Nicole Elizabeth Blackburn
  • Patent number: 10161645
    Abstract: A local air cleaning apparatus (1) is provided with push hoods (2, 3) having an air flow opening face (23) for blowing out a cleaned uniform air flow and a pair of guides (4, 5) provided on sides of the push hoods (2, 3) having the air flow opening faces (23), the guides (4, 5) extending from the sides thereof having the air flow opening faces (23) toward downstream sides of the uniform air flows to form opening faces (41, 51) at downstream-side end portions of the guides. The push hoods (2, 3) are arranged such that the respective air flow opening faces (23) are opposed to each other. The opening faces (41, 51) of the guides (4, 5), are spaced apart from and opposed to each other to form an open region between the opening faces (41, 51) of the respective guides (4, 5).
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: December 25, 2018
    Assignee: Koken Ltd.
    Inventors: Taketo Suzuki, Tomoyuki Kakinuma, Kozo Nitta, Yuki Fujishiro, Kazuma Fukiura, Takahiro Sato
  • Patent number: 9975135
    Abstract: The invention is directed to a lightweight apparatus for the redirection and capture of paint overspray and airborne particulates at a surface being painted. The apparatus has a top tubing arrangement, and a bottom tubing arrangement, and blowers that provide air to both tubing arrangements. The invention also has an enclosure having a top opening and a bottom opening. The bottom tubing arrangement is positioned at the bottom opening. The bottom tubing arrangement includes a plurality of perforations creating an airflow that provides a pneumatic seal between the apparatus and the surface being painted, preventing the escape of paint overspray. The top tubing arrangement also includes a plurality of perforations that create an airflow that prevents the escape of paint overspray from the enclosure. Entrained paint overspray and airborne particles within the enclosure are captured by a filter within the enclosure.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: May 22, 2018
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: William M. Hertel, III, Richard J. Norcross
  • Patent number: 9410710
    Abstract: A purified air discharge device includes a push hood (2) having an air flow discharge surface (23) discharging a uniform purified air flow. The push hood (2) is provided with a lateral air discharger (28) for creating a purified air flow that collides against a surrounding wall that is formed as the push hood (2) is installed and that is situated close along the circumferential direction of the air flow discharge surface (23) of the push hood (2).
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: August 9, 2016
    Assignee: Koken Ltd.
    Inventors: Taketo Suzuki, Tomoyuki Kakinuma, Kozo Nitta, Yuki Fujishiro, Kazuma Fukiura, Takahiro Sato
  • Patent number: 9004991
    Abstract: Provided is a temperature control apparatus of a working machine that is inexpensive, energy-saving and capable of eliminating the temperature difference between a temperature in a room in which the working machine is installed and a temperature of a working area.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: April 14, 2015
    Assignee: DMG Mori Seiki Co., Ltd.
    Inventors: Yoshiaki Sugimoto, Takashi Hoshi, Kiyoshi Yoshioka, Soichiro Yamada
  • Publication number: 20150072603
    Abstract: A controlled atmosphere workstation comprising a transparent housing (1) having a pair of apertures (21, 22) 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 (7, 10) which converge towards the front of the chamber, in which the apertures are provided. There is a font panel (3) and an upwardly inclined top viewing panel (13). The housing is mounted on a base (2) 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 (31, 32) on either side, feeding outlets (27, 28).
    Type: Application
    Filed: March 21, 2013
    Publication date: March 12, 2015
    Applicant: Oxford Optronix Limited
    Inventors: William Neil Spencer, Andrew Nadeem Obeid, Michael Stanley Wright
  • Publication number: 20150056904
    Abstract: 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: a transparent fixed pane and a transparent hinged pane; wherein the 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; and wherein the 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.
    Type: Application
    Filed: August 21, 2014
    Publication date: February 26, 2015
    Inventors: Francois Hauville, Stephan Hauville, Antoine Hauville, Cédric Herry
  • Patent number: 8961639
    Abstract: The present invention relates to a welding booth that has a small foot print and can be joined to other booths for maximization of floor space use.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: February 24, 2015
    Inventor: Edwin Sithes
  • Patent number: 8939142
    Abstract: An exhaust system includes a hood structure having one or more of (i) an exhaust flow infeed surface extending downward from a lower end of the filter unit that helps to feed the thermal plume toward the filter unit, (ii) a bypass flow transition surface extending upward from the upper end of the filter unit and then forward to aid bypass flow in circulating back toward the filter aperture and (iii) a front wall structure that includes a downwardly extending wall portion with a chamfered and/or curved transition portion at its lower end and a rearwardly extending wall portion.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: January 27, 2015
    Assignee: ITW Food Equipment Group LLC
    Inventors: Russell Robison, Kui-Chiu Kwok, Bruce Lukens
  • Patent number: 8940065
    Abstract: 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.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 27, 2015
    Assignee: Kewaunee Scientific Corporation
    Inventor: Kurt P. Rindoks
  • Patent number: 8920224
    Abstract: Embodiments of the present invention provide a blower enclosure configured to secure to a base and house a blower. The blower enclosure includes a main body defining an internal blower chamber, and at least one access door configured to open to allow access to the blower. The enclosure may also include a gland plate secured over a preformed opening in the main body. The gland plate may include an O-ring configured to sealingly engage an outlet pipe of the blower. The enclosure may further include a fixed filter shroud configured to allow a user to install and remove a filter element without the use of a tool.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: December 30, 2014
    Assignee: Illinois Tool Works Inc
    Inventor: Allen S. Pucciani
  • Patent number: 8915984
    Abstract: An isolator device having a work chamber, air supply means for supplying air of a unidirectional airflow traveling from an upper part to a lower part in the work chamber, and air discharge means for discharging air of the unidirectional airflow from a lower part of the work chamber are provided, and moreover, a bulkhead provided in parallel with a peripheral wall portion of the work chamber along the air of the unidirectional airflow and longitudinal air outlets opened along a width direction of a lower end portion in a lower part of the lower end portion of the bulkhead and attached so as to oppose an air inlet portion by a filter unit for air purification is provided.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: December 23, 2014
    Assignee: Airex Co., Ltd
    Inventors: Koji Kawasaki, Minoru Miyamoto, Toshinaga Toda
  • Patent number: 8908024
    Abstract: The disclosure reveals a system for detecting one or more persons in a specified zone. A determination is whether there is a person in the zone. A presence determination module may indicate from a current image of the zone compared with a reference image of the zone, whether there is a person in or not in the zone. An illumination controller may assure that the zone is sufficiently illuminated for a current image sufficient for comparison with the reference image to determine a possible presence of a person in the zone. The illumination may be infrared. The system may be used to assure appropriate and adequate face velocity at a fume hood having the presence of a person and having minimal face velocity in the absence of a person at the fume hood.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: December 9, 2014
    Assignee: Honeywell International Inc.
    Inventors: Aleksandr Ivan Fedorenko, Liwen Yu, Carveth DeLeon
  • Publication number: 20140230662
    Abstract: An improved control system for a range hood that is capable of automatically responding to various air quality parameters including heat, smoke, carbon monoxide, humidity, and others. The system contains a number of features that, combining aspects of open-loop and closed loop control, manage the system dynamics for smoother operation, respond to both level and rate signals and compensate for background conditions and sensor variability by using relative values.
    Type: Application
    Filed: February 21, 2013
    Publication date: August 21, 2014
    Applicant: RAIN MOUNTAIN, LLC
    Inventors: Robert Siegel, Robert Lewandowski
  • Patent number: 8795040
    Abstract: 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.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: August 5, 2014
    Assignee: Oy Halton Group Ltd.
    Inventors: Michael P. Burdett, Daniel Reich
  • Publication number: 20140179210
    Abstract: 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.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Applicant: Deere and Company
    Inventor: John M. Holmes
  • Patent number: 8728187
    Abstract: 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. A flow velocity of a clean air supplied into the working space and a flow velocity of the air flowing through the front opening are set at respective velocities predetermined to keep a physical isolation for preventing the contamination in accordance with a size of the front opening. Further, in the safety cabinet, the size of the front opening communicating with the working space under the front surface shutter is adjustable between 200 mm and 300 m.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: May 20, 2014
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventor: Keiichi Ono
  • Patent number: 8715046
    Abstract: 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 air from the workspace, purging unwanted substances from that air, and then exhausting that filtered air to the ambient room atmosphere; and a slave module for receiving air from the workspace, purging unwanted substances from that air, and then exhausting that filtered air to the ambient room atmosphere; wherein the slave module is in communication with the master module such that the master module central processing unit is capable of (i) controlling the operation of the active elements of the slave module, (ii) detecting a function failure of the slave module, and (iii) activating the master module alarm in the event of a failure within that slave module.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: May 6, 2014
    Assignee: Fipak Research And Development Company
    Inventor: Francois P. Hauville
  • Publication number: 20140120819
    Abstract: 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.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 1, 2014
    Applicant: Honeywell International Inc.
    Inventors: Richard E. Stakutis, David Boisvert
  • Publication number: 20140106657
    Abstract: 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.
    Type: Application
    Filed: October 11, 2012
    Publication date: April 17, 2014
    Inventor: Joseph Urban
  • Patent number: 8628388
    Abstract: 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.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: January 14, 2014
    Assignee: A1 Envirosciences Limited
    Inventor: Sean Patrick Codling
  • Publication number: 20130331018
    Abstract: 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.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 12, 2013
    Applicant: University Of Kansas
    Inventors: GEORGE S. WILSON, WILLIAM SCOTT JEFFRESS, FRANK J. SCHOENEN
  • Publication number: 20130244555
    Abstract: 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.
    Type: Application
    Filed: February 14, 2013
    Publication date: September 19, 2013
    Applicant: Illinois Tool Works Inc.
    Inventors: Brian J. Hammers, Bradley G. Carman
  • Patent number: 8505530
    Abstract: An exhaust system includes a hood structure having one or more of (i) an exhaust flow infeed surface extending downward from a lower end of the filter unit that helps to feed the thermal plume toward the filter unit, (ii) a bypass flow transition surface extending upward from the upper end of the filter unit and then forward to aid bypass flow in circulating back toward the filter aperture and (iii) a front wall structure that includes a downwardly extending wall portion with a chamfered and/or curved transition portion at its lower end and a rearwardly extending wall portion.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: August 13, 2013
    Assignee: ITW Food Equipment Group LLC
    Inventors: Russell Robison, Kui-Chiu Kwok, Bruce Lukens
  • Patent number: 8475244
    Abstract: 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.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: July 2, 2013
    Assignee: Lincoln Global, Inc.
    Inventor: Douglas Wright
  • Patent number: 8469780
    Abstract: A reverse oblique air curtain exhaust cabinet comprises a cabinet that has a bottom plate and an elongate air blow slot is provided in front of the bottom plate. Through the elongate air blow slot, air is blown upward at an oblique angle toward the rear plate of the cabinet. An air-extraction hood is provided in a space defined above the bottom plate in a way of being vertically movable relative to the cabinet. The air-extraction hood has an elongate air-extraction part that is parallel to the elongate air blow slot in a way that the elongate air-extraction part is above and spaced from the elongate air blow slot toward the rear plate of the cabinet. Thereby, an oblique air curtain that flows upward is formed to remove the pollutants between the oblique air curtain and rear plate and left and right lateral plates in a more energy-saving way.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: June 25, 2013
    Assignee: National Taiwan University of Science and Technology
    Inventor: Rong Fung Huang
  • Patent number: 8465576
    Abstract: A mobile laminar flow hood specifically devised for use in podiatry and a podiatric apparatus to which such hood is associated are described. The hood is adapted to generate a laminar flow of sterile air. In particular, an apparatus comprises a system for the generation and treatment of a laminar air flow in an intervention zone is described, together with means to support the system for the generation and treatment of a laminar air flow. The system has a blowing hood adapted to generate a laminar flow of sterile air towards the intervention zone, and a suction hood adapted to suck the laminar flow of sterile air from the intervention zone.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: June 18, 2013
    Assignee: Epitech Group S.r.l.
    Inventors: Francesco Della Valle, Michela Rampazzo, Vanni Canton
  • Patent number: 8460441
    Abstract: A method for operating a ducted fumehood with increased energy efficiency, wherein the method includes 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.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: June 11, 2013
    Assignee: FIPAK Research and Development Company
    Inventor: Francois Hauville
  • Patent number: 8430940
    Abstract: A system for ridding the working area of a nail salon work station of fumes and nail dust. The system is self-contained within the particular work station and has a vacuum system that draws air in from the area surrounding and proximate the working area to remove the fumes and dust. A fan draws that air into a chamber containing a bag-type, particulate filter that filters out the nail dust. Downstream of the bag-type filter is a fume filter that receives the air from the bag-type filter, having been pressurized by the fan, and provides a filter of the fumes. The air, now having passed through a particulate filter and a fume filter is exhausted into the room at a location remote from the working area. The bag-type filter is inexpensive and readily replaced.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: April 30, 2013
    Inventor: Huan Trong Nguyen
  • Publication number: 20130090049
    Abstract: 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.
    Type: Application
    Filed: September 17, 2012
    Publication date: April 11, 2013
    Inventor: Lawrence Robert Meisenzahl
  • Publication number: 20130052927
    Abstract: 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.
    Type: Application
    Filed: August 21, 2012
    Publication date: February 28, 2013
    Applicant: THERMO ELECTRON LED GMBH
    Inventors: Olaf Broemsen, Edmund Frickel, Christoph Noll, Oliver Rupp
  • Patent number: 8382873
    Abstract: A safety cabinet can adapt to variations in body height of a worker or user. The safety cabinet prevents various bacteria from proceeding from the outside of the safety cabinet into a working space of the safety cabinet and prevents bacteria or viruses from proceeding from the working space to the outside of the safety cabinet irrespective of a change in opening area of a front opening. A flow velocity of clean air supplied into the working space and a flow velocity of the air flowing through the front opening are set in accordance with a size of the front opening to maintain physical isolation and prevent contamination. The size of the front opening of the safety cabinet is adjustable.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: February 26, 2013
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventor: Keiichi Ono
  • Patent number: 8376821
    Abstract: A work cabinet with a work chamber that contains, on a temporary basis, a material being worked upon has a transfer opening connecting the work chamber with an ambient space of the cabinet. The transfer opening permits access to the worked material and gives access to the work chamber. A connected ventilating device provides a lower-than-ambient pressure in the work chamber. The work cabinet further has a printer transfer opening for connecting the work chamber to the delivery outlet for the printed output of a printer that is set up in the vicinity of the work cabinet. The delivery outlet for the printer output may reach through the printer transfer opening into the work chamber or it may merely adjoin the printer transfer opening.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: February 19, 2013
    Assignee: Mettler-Toledo AG
    Inventor: Bruno Nufer
  • Publication number: 20120322353
    Abstract: 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.
    Type: Application
    Filed: June 15, 2011
    Publication date: December 20, 2012
    Applicant: ACTIVAR, INC.
    Inventor: Clifford Christopherson
  • Publication number: 20120270488
    Abstract: 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.
    Type: Application
    Filed: April 17, 2012
    Publication date: October 25, 2012
    Applicant: AZBIL CORPORATION
    Inventors: Takashi FUJIMURA, Yasuhito Oomagari
  • Publication number: 20120258653
    Abstract: 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.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 11, 2012
    Inventor: William J. Kelso
  • Publication number: 20120220211
    Abstract: 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.
    Type: Application
    Filed: February 28, 2011
    Publication date: August 30, 2012
    Applicant: LINCOLN GLOBAL, INC.
    Inventor: David OSICKI
  • Patent number: 8247738
    Abstract: The present invention relates to a welding booth that has a small foot print and can be joined to other booths for maximization of floor space use.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: August 21, 2012
    Inventor: Edwin F. Sithes
  • Publication number: 20120171941
    Abstract: By exhausting a gas in a second space (S2) surrounded by an outer wall of an inner barrel member (12) and an inner wall of an outer barrel member (13) outside an outer wall of the outer barrel member (13), a pressure in the second space (S2) is decreased so as to be lower than a pressure in a first space (S1) in the inner barrel member (12). This enables the gas in the first space (S1) to pass through a communication mechanism (30) and flow toward the second space (S2). At this time, an airflow passing through the communication mechanism (30) is “narrowed” so that the airflow is forced to flow. Thus, a mist containing particles or the like, which is generated when performing processing of the substrate (20), is efficiently exhausted from the first space (S1), therefore, contamination of the processing target surface of the substrate is prevented.
    Type: Application
    Filed: December 22, 2011
    Publication date: July 5, 2012
    Applicant: MICRO ENGINEERING INC.
    Inventor: Minoru Matsuzawa
  • Patent number: 8163052
    Abstract: 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. A flow velocity of a clean air supplied into the working space and a flow velocity of the air flowing through the front opening are set at respective velocities predetermined to keep a physical isolation for preventing the contamination in accordance with a size of the front opening. Further, in the safety cabinet, the size of the front opening communicating with the working space under the front surface shutter is adjustable between 200 mm and 300 m.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: April 24, 2012
    Assignee: Hitachi Industrial Equipment Systems Co., Ltd.
    Inventor: Keiichi Ono
  • Publication number: 20120077425
    Abstract: 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.
    Type: Application
    Filed: September 29, 2011
    Publication date: March 29, 2012
    Applicant: UNIVERSITY OF MEDICINE AND DENTISTRY OF NEW JERSEY
    Inventors: Jeffrey Grek, Robert Eckhardt, Richard Scott Wernoski
  • Publication number: 20120052784
    Abstract: A fume hood includes a ventilated chamber having an access opening. A first elongated airfoil assembly is attached to an edge portion of a floor that extends from the opening. A sash is slidably mounted at the access opening and a second elongated airfoil assembly is attached to a lower edge of the sash. The first elongated airfoil assembly includes a plurality of elongated vanes in vertically spaced-apart relationship that define air flow channels. The second airfoil assembly includes a pair of elongated vanes in vertically spaced-apart relationship that define air flow channels that extend into the chamber. A baffle assembly is located in front of a rear wall of the chamber and includes a primary panel having a plurality of vertical air-exit slots adjacent a lower edge, and a buffering panel having a plurality of horizontal air-exit slots adjacent an upper portion.
    Type: Application
    Filed: August 27, 2010
    Publication date: March 1, 2012
    Inventors: Thomas C. Smith, Paul C. Curd, Tam N. Trinh