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Class 454/230 - Forced recirculation alone


Subclass of Class 454 - Ventilation
Definition: Subject matter wherein the air moving apparatus contacts
No. of patents: 82
Last issue date: 11/25/2008


1      
NumberTitleIssue Date
7455582Solar powered fan for portable enclosure
The solar powered fan for a portable enclosure includes an electrical fan, which is pivotally mounted within the interior region of a portable edifice, such as that associated with a portable toilet facility. The pivotal mounting of the fan allows for selective user...
11/25/2008
7381129Columnar air moving devices, systems and methods
Air moving device includes a housing, an impeller in the housing for generating a downward air flow, and vanes in the housing in close proximity to and a selected distance below the impeller to straighten the air flow. The device produces an air flow that substantia...
06/03/2008
7335243Modular biosafety containment apparatus and system
The present invention relates to apparatus and systems for isolating hazardous agents and organisms from their handlers and the public. In particular, the present invention relates to modular negative pressure biological containment chambers. ...
02/26/2008
7332006Ventilating and air purifying device
Ventilating and air purifying device including a case having a blower therein provided to a ceiling or a wall, a first flow passage provided between the blower and a room for making an outdoor, the blower, and the room in communication, a second flow passage for mak...
02/19/2008
7244179Suspension type oscillation mechanism
A suspension type oscillation mechanism including a frame set having an upper frame with a frame hole, a casing secured to the frame set, a crank set, an axial barrel and a fastening rod. The crank set has cranks rotationally joining to each other and an end of the ...
07/17/2007
7210910Enhancements to high efficiency ceiling fan
Twisted ceiling fan blades for low, medium and high speed operation of less than approximately 250 rpm. The novel blades twisted blades can be configured for 60″ and 64″ diameter fans, and have less blades (3 for example) than conventional flat type bladed fans ...
05/01/2007
7147553Portable 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
7105037Semiconductor manufacturing facility utilizing exhaust recirculation
A semiconductor manufacturing process facility requiring use therein of air exhaust for its operation, such facility including clean room and gray room components, with the clean room having at least one semiconductor manufacturing tool therein, and wherein air exha...
09/12/2006
7055287Panel arrangement
This invention relates to a space-dividing wall panel system having a plurality of base panels which are serially connectable one with the other to define a vertically enlarged wall supported on a floor. Each base panel is defined by at least one horizontal box-beam...
06/06/2006
7044851Air handling system for specialized facility
An air handling system for a specialized environment, such as an operating room in a hospital or other health care facility is presented. The air handling system includes an air recirculation system having a blower for drawing air from the specialized environment fo...
05/16/2006
7037188Systems for delivering conditioned air to personal breathing zones
A system to significantly improve the air quality in a personal breathing environment. The system includes a blower unit that produces a conditioned air flow, a delivery system that delivers air provided by the blower unit to a person's breathing zone, and a conduit...
05/02/2006
6976911Method and apparatus for filtering airborne contaminants
A method and apparatus for removing airborne contaminants in residential or commercial buildings injects filtered air into these enclosures. Prior to be injected in these enclosures, the air is filtered for chemical, biological or radioactive hazards. The filtering ...
12/20/2005
6974381Drop ceiling air flow producer
An air flow producer of non-rectangular shape is adapted for installation in a rectangular opening of a drop ceiling. In preferred form, the producer has a circular housing with an open bottom covered with a grill. A fan with a rotary blade assembly is mounted in th...
12/13/2005
6960244System and method for removing contaminates from the air in a mail-sorting room
A system for removing contaminates from the air in a mail sorting room includes a vacuum unit and a filter, both of which may be located within this room. The vacuum unit creates a downwardly directed laminar flow of air which expels airborne particulates (e.g., ant...
11/01/2005
6955596Air flow producer for reducing room temperature gradients
An air flow producer mounted at the ceiling of a room generates an air flow toward the floor, reducing temperature gradients and improving heating and cooling efficiency. A housing defines a circular cylindrical, vertical flow passage that receives the air flow. A d...
10/18/2005
6945868Outdoor fan system
A camouflaged outdoor fan system includes a housing, a fan inserted into the housing, and a camouflaged lid removably connected to the housing. The housing is buried in the ground, or in alternative embodiment, mounted to the underside of a deck, the fan is inserted...
09/20/2005
6923716System and method for protection against nuclear, biological and chemical (NBC) contamination
The invention provides an NBC protection and decontamination system, having a space delimited by an enclosure, the enclosure having a clean air inlet port and an air outlet, a decontamination unit attachable to the outside of the enclosure, the decontamination unit ...
08/02/2005
6852025Vertical ventilator for outdoors and/or indoors
Based on a hollow column (1), terminating at the bottom in a baseplate (2) and at the top in a core (3) from which vanes (4-4′), also hollow and connected with the column (1), emerge; a motor-fan (6-7) is installed in the ...
02/08/2005
6790249Apparatus and method for screening people and articles to detect and/or decontaminate with respect to certain substances
Improvements are provided to enable an air-curtain portal to be used for the triage and decontamination of persons who may have been exposed to toxic gas vapour or particulate material. ...
09/14/2004
6709475Installation for processing wafers
An installation for processing wafers that includes fabrication units, which are located in a clean room, and includes a supply system for supplying and discharging operating substances for the fabrication units. The supply system has first supply lines and first di...
03/23/2004
6692348Methods and systems for controlling a mailroom environment
The present invention generally relates to mail processing and environment control. Systems for controlling a mail-processing environment to protect against contaminants may comprise a first air vent for supplying air to the mail-processing environment, a...
02/17/2004
6431979Wall curb for HVAC system
A wall curb 10 for attachment to the exterior wall 32 of a building to removably secure a wall mounted HVAC unit 38 to the exterior surface 44 of the wall 32. The wall curb 10 serves to attach the supply air duct 34 from within the building to the supply ...
08/13/2002
6375697Apparatus and method for screening people and articles to detect and/or to decontaminate with respect to certain substances
A walk-through portal or other enclosure is provided for at least one of detection of a predetermined substance on a subject and decontamination of a subject from a predetermined substance, the subject being either a person or, for other type of enclosure...
04/23/2002
6361431Method for ventilating an internal space by rotating air flow
A method for ventilating an internal space by rotating air flow comprises a step of blowing out a jet of internal air having a vertically long rectangular cross section and uniform blowout velocity distribution over the cross section horizontally along th...
03/26/2002
6325835Air-purifying system blower module with exhaust chute
A blower module for use with a commercial air-purifying system. The blower module includes a housing, a blower unit and a chute. The housing defines an inlet region and an outlet region. The inlet region forms an intake port. The outlet region forms a sup...
12/04/2001
6248014Self-contained activity module
A self-contained activity module comprises a base assembly, a first service housing and distribution unit positioned on the base comprising walls forming at least one service passage, and a second service housing and distribution unit positioned on the fi...
06/19/2001
6152451Ventilation device for a gaming table
A device and improved gaming table are set forth which includes a frame to be mounted in the opening of a table, such as a Blackjack table, adapted to hold the chip rack. The frame has at its perimeter at least one upwardly directed slot. An air supply pl...
11/28/2000
6123618Air movement apparatus
An air movement apparatus (10) comprises a curved body about which air can circulate, the curved body having a rim (12) and, in use, having a lower pressure surface (25) on one side of the rim (12), and a higher pressure surface (26) on the other side of ...
09/26/2000
5970987Laterally and interstitially vented humidor
A humidor for retaining and preserving cigars includes a housing having a housing bottom wall and a housing top wall, and at least one housing side wall interconnecting the housing bottom wall and housing top wall, an access structure for opening the hous...
10/26/1999
5941767Air circulating device
An air circulating device efficiently circulates air in a room in a building while and having a simple structure. The air circulating device has at least one duct (10) and at least one fan (40) for circulating air. The duct has at one end a first air port (20)...
08/24/1999
5778607Portable smoker's booth
A smoker's booth, for use within an enclosed area, including sidewalls having a door providing access to a single user compartment, wherein the sidewalls define upper and lower open ends. The lower end is closed by a base panel supporting the sidewalls, w...
07/14/1998
5690165Ventilation device for a space zone
The invention relates to a ventilation device. Provision is made that the air propulsion plant (20) conveys at least a portion of the air in an air circulating mode by means of at least one variable volume chamber (6) in a pulsating manner at a very low f...
11/25/1997
5649997Air vacuum apparatus
Apparatus for use with a gaming table or other surfaces for removing and filtering indoor airborne fumes and particles at their point of origin. A laminar exhaust air flow is created across the table surface. The laminar exhaust is drawn by vacuum through...
07/22/1997
5624311Method and apparatus for room temperature equalizing and air treatment
A method and apparatus for use in a room for circulating the air, for substantially balancing the temperature of the air distributed in the room, and for treating the air. The apparatus comprises a body having an interior cavity. The cavity is provided wi...
04/29/1997
5562286Casino gaming table having a ventilating device for removing smoke
The present invention provides a smoke-eliminating device of simple construction which can easily be installed onto a preexisting casino gaming table. The fan for circulating air during the purification process is located beneath the gaming table to there...
10/08/1996
5562539Clean space system
A clean space system prevents pollution of clean surroundings in a processing space. Pollution is avoided which could otherwise occur when a worker comes in contact with the processing space while carrying out processes and operations in the clean surroun...
10/08/1996
5537787Portable smoking booth
A portable smoking booth includes an enclosure secured to a base that defines a smoking area. A smoke detector is positioned to detect smoke within the smoking area. An air purifying mechanism purifies air within the enclosure. A control mechanism for acc...
07/23/1996
5499868Self-supporting data processing desk module with detachable and longitudinally shiftable exhaust fan assembly and adjustable angle, reversible video deck bridges with front and rear continuous sweep grommets
A trading desk cluster of back-to-back, side-to-side paired desk modules employs a generally enclosed cabinet for mounting internally electronic data processing equipment, which develops high heat under load. The enclosed cabinet includes an apertured fro...
03/19/1996
5493808Controlled atmosphere storage chamber
A controlled atmosphere storage chamber (22) including: (i) means (34) for generating cooled and pressurised air located within or adjacent the chamber such as an airconditioner; (ii) one or more air supply ducts (28) associated with the generating means for c...
02/27/1996
5468184Air circulation system for enclosed structures
A forced air circulation system for an enclosed room with a floor, room walls, and a ceiling. The system includes at least one distributor unit positioned adjacent the base of at least one of the room walls. The distributor unit has an elongated center se...
11/21/1995
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