Forced Recirculation Alone Patents (Class 454/230)
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Patent number: 6152451Abstract: 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 plenum is provided to supply air from a blower to the frame slot. The supplied air defines an air curtain to isolate the dealer from second hand smoke from the customers. In one embodiment, the frame includes ducts at its perimeter to overlay the table, the ducts including the slots. The slots are disposed at the sides and front of the frame to define a three sided air curtain in front of the dealer's position.Type: GrantFiled: April 20, 1999Date of Patent: November 28, 2000Inventor: Robert Brian Bixby
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Patent number: 6123618Abstract: 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 the rim (12), an air outlet (22) to blow air over the lower pressure surface (25), an air inlet (24) to suck air in from the higher pressure surface (26), and air acceleration means (14) to move air from the air inlet (24) to the air outlet (22).Type: GrantFiled: February 24, 1999Date of Patent: September 26, 2000Assignee: Jetfan Australia Pty. Ltd.Inventor: Terence Robert Day
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Patent number: 5970987Abstract: 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 housing to admit cigars and for closing the housing to retain humidified air, a humidity generating structure, and a venting structure having elements for retaining several of the cigars within the housing spaced apart from the housing side wall to define at least one air circulation passageway between the cigars and the housing side wall. The humidor additionally includes at least one cigar separation sheet in the form of a sheet of resilient material with at least one sheet air passing vent opening for placing between horizontal layers of the cigars to define air circulation passageways between the cigars constituting each layer of cigars. The housing and vent structure are both preferably made of cedar.Type: GrantFiled: July 11, 1997Date of Patent: October 26, 1999Assignee: Cu-Avana, Inc.Inventor: Armando Barreiro, Jr.
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Patent number: 5941767Abstract: 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) and at the other end a second air port (21). The duct is mounted on a wall surface by mounting device (12).Type: GrantFiled: November 17, 1997Date of Patent: August 24, 1999Inventor: Kozo Fukuda
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Patent number: 5778607Abstract: 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, while the upper end is closed by a modular cap assembly, adapted for treating tobacco smoke-laden air drawn upwardly from the closed compartment. The modular cap assembly, which includes a closed space divided into a plurality of chambers, provides at least one plenum chamber and an electrical equipment chamber. An air treating unit is located in the plenum chamber, intermediate intake and return air vent openings communicating with the compartment. A blower draws tobacco smoke-laden air upwardly from the compartment, through the intake vent opening and plenum chamber, and returns only treated air to the compartment, via its return vent.Type: GrantFiled: July 11, 1996Date of Patent: July 14, 1998Inventor: Benjamin J. Edwards
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Patent number: 5690165Abstract: 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 frequency, with the chamber being connected to the room (2) by at least one air passage (21).Type: GrantFiled: July 27, 1995Date of Patent: November 25, 1997Assignee: LTG Lufttechnische GmbHInventors: Hans-Werner Roth, Andreas Bollinger, Gerd-Eugen Schaal, Claus Handel
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Patent number: 5649997Abstract: 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 air intakes positioned at the table surface and ported through exhaust ducts for filtering and discharge.Type: GrantFiled: May 19, 1995Date of Patent: July 22, 1997Inventors: Thomas Cavallero, Nickolas C. Gibson, Richard Bilyak
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Patent number: 5624311Abstract: 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 with an air-circulating fan assembly and air treating component. The air treating component may be hollow and may include filtering, deodorizing, and scenting material. Strategic placement of the apparatus within a room allows for substantially balanced room temperatures.Type: GrantFiled: April 3, 1996Date of Patent: April 29, 1997Inventor: Walter W. Peludat
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Patent number: 5562539Abstract: 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 surroundings. The apparatus includes a clean processing space, in which the processes and operations are carried out, and a preparing space coupled with an opening for work in the processing space. The preparing space is used by the worker prior to entering the processing space. In the preparing space, the worker performs preliminary actions such as changing his clothes and cleaning himself using an air shower to remove particles from his body.Type: GrantFiled: January 17, 1995Date of Patent: October 8, 1996Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Naoyuki Hashimoto, Sakae Kobayashi, Youichi Nakamura
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Patent number: 5562286Abstract: 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 thereby reduce noise and increase the amount of usable area surrounding the gaming device. The smoke-eliminating device of the present invention is placed between the outer edge of the gaming table and a padded rim above this outer edge. Spaces are placed between the padded rim and the outer edge of the gaming table, to thereby vertically raise the padded edge. The space created between the padded rim and the gaming table is filled with intake vents and the spacers. An air circulator and purifying device is located beneath the table and conduit connects the intake vents to the air circulator and purifying device. The intake vents thus remove cigarette smoke from near the gaming table, purify the air, and release the purified air beneath the gaming table.Type: GrantFiled: December 5, 1994Date of Patent: October 8, 1996Inventor: Oscar J. Brinket
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Patent number: 5537787Abstract: 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 accepting payment from a user within the smoking area controls the smoke detector such that when payment is made, the smoke detector is disabled.Type: GrantFiled: November 13, 1995Date of Patent: July 23, 1996Assignee: Dennis AbrahamInventor: Dennis Abraham
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Patent number: 5499868Abstract: 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 front wall for passage of cooling air and carries internally a fan assembly including a box-like plenum chamber, from which rises at the rear an upright outlet duct sized smaller than the open lower end of a vertical chimney at the rear of the desk. Tilting of the fan assembly permits the outlet duct to project vertically upward within the chimney and locked to the lower end thereof. The fan assembly is mounted on an angle bar for tilting and for supporting the fan assembly for sliding longitudinally to a position so as to overlie and be centered with the underlying processing equipment such as a CPU.Type: GrantFiled: August 31, 1994Date of Patent: March 19, 1996Assignee: WoodtronicsInventor: Alfred Schainholz
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Patent number: 5493808Abstract: 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 circulating said cooled and pressurized air throughout the chamber (22) wherein the or each supply duct (28) extends substantially the length of the chamber (22) and has an unrestricted air flow passage which has a transverse dimension or width that tapers progressively inwardly throughout its length towards an end remote from the generating means (34);(iii) air outlet means (51, 61, 62) associated with the or each supply duct (28) which air outlet means (51, 61, 62) extends substantially the length of the or each supply duct (28);(iv) one or more elongate hollow storage members (23) having one or more heat sources (27) located closely adjacent thereto wherein the interior of the or each storage member functions as a return duct (29) for return of heat ladeType: GrantFiled: September 7, 1993Date of Patent: February 27, 1996Assignee: Apolan Pty Ltd.Inventor: James T. Munday
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Patent number: 5468184Abstract: 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 section, an inlet opening for receiving forced circulation air, and an elongated outlet passage of smaller cross-sectional area than that of the inlet opening. The system also provides a deflector unit positioned on the room wall substantially upwardly of the distributor outlet passage. The deflector unit has surface portions approximately parallel and perpendicular to the wall surface as well as a transition portion connecting these surfaces. Supply and return conduits are provided for directing forced air to the distributor unit inlet and withdrawing the circulated air from the room.Type: GrantFiled: October 13, 1993Date of Patent: November 21, 1995Inventor: William R. Collier
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Patent number: 5453049Abstract: Air purification or filtration unit having a triangular housing, with the open front face being the hypotenuse of the triangle. The unit is particularly adaptable for use with conventional sized high efficiency particulate air, or HEPA filters and low penetration air, or ULPA filters, to create a highly filtered clean air environment. The unit includes a circulating fan within the housing to draw air through the filters and housing and to exhaust the air through the top housing wall for recirculation, and can also be ducted to exhaust filtered air from the environment, either in whole or in part. A germicidal ultra violet light may be placed within the housing for additional air purification.Type: GrantFiled: February 23, 1994Date of Patent: September 26, 1995Assignee: Isolate, Inc.Inventors: Bernard W. Tillman, Jr., Van B. Smith, Jr.
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Patent number: 5441279Abstract: A casino gaming table provides a smoke-free environment for the casino operator by discharging an air curtain or air barrier of purified filtered air. The gaming table includes a filter assembly which withdraws smoke contaminated air from ashtrays and smoking patrons who are playing the casino game. The purified filtered air is discharged adjacent the casino operator to provide a breathing zone free of cigarette smoke and related pollutants.Type: GrantFiled: August 8, 1994Date of Patent: August 15, 1995Inventor: Gary D. Messina
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Patent number: 5417433Abstract: A ventilated gaming table assembly includes a gaming table component, a rail component and a plurality of electric ventilating fan subassemblies mounted about the periphery of the table and operable selectively by individual players.Type: GrantFiled: July 25, 1994Date of Patent: May 23, 1995Inventor: Donald A. Phillips
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Patent number: 5403232Abstract: A ventilation system is provided for communicating ventilation air through a modular furniture arrangement, such as open office partition panel systems or the like. The ventilation system includes an air source, and a collapsible duct connected to the air source. The collapsible duct can be routed through interior spaces in partition panels in a collapsed state to facilitate routing and installation. After installation, the collapsible duct can be inflated for use, at which time the collapsible duct inflates to a maximum size to minimize resistance to air flow. Multiple secondary openings distribute the ventilation air in the collapsible duct to various worksurfaces as desired. A pressure relief valve is attached to the collapsible duct to prevent over-pressurization of the collapsible duct.Type: GrantFiled: May 10, 1993Date of Patent: April 4, 1995Assignee: Steelcase Inc.Inventors: Randall S. Helm, James R. Ahart
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Patent number: 5358443Abstract: A device for use with at least one workspace, to produce an umbrella of clean room air for a distance of one meter from the device and 98% fewer particles than the air in the area three meters from the device. The device has a chamber defined by an outer wall, end walls and a filter as the inner wall. The filter functions as tile sole outlet of air. A motor with an axially extending drive shaft is mounted inside said filter. The shaft has an intake fan mounted on one end to define a sealed path which is the sole air inlet to the chamber. An exhaust fan is mounted on the other end of the shaft to define a path from the sole outlet. Air is exhausted in an axial direction is then deflected from the axial direction to the radial direction onto a baffle to reduce the velocity of the air to laminar flow. The baffle includes an upper terminal lid and a plurality of annular stepped vanes that divide the axially exhausted air into turbulent air streams and converts the turbulent air streams into radial laminar flow.Type: GrantFiled: April 14, 1993Date of Patent: October 25, 1994Assignee: CenterCore, Inc.Inventors: Robert G. Mitchell, George Havrilla
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Patent number: 5322473Abstract: A smoker's booth for isolating, containing, venting, and filtering tobacco smoke. The booth has a walled enclosure with a modular room divider system using hollow walls, filtration, and blower devices to remove tobacco smoke from workplace air.Type: GrantFiled: October 2, 1992Date of Patent: June 21, 1994Assignee: Quality Air Systems, Inc.Inventors: Joseph S. Hofstra, Ronald J. Karaskiewicz, Mark R. Fischer
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Patent number: 5288267Abstract: A work station unit for use in an array including at least one work space defined in part by intersecting side walls. The unit comprises an air circulation unit mounted on at least one side wall of the work space, at a location proximate the intersection. An air inlet on the unit draws ambient air into the unit and an air discharge discharges air in a predetermined controlled direction to cooperatively form an envelope of air surrounding a space defined in part by the side walls and in part by air flow out of the discharge and into the air inlet. An individual in the work station is enclosed in air having superior quality to ambient air.Type: GrantFiled: February 10, 1993Date of Patent: February 22, 1994Assignee: Centercore, Inc.Inventor: George Mitchell
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Patent number: 5180332Abstract: An apparatus for use with a multi-station workspace including a predetermined number of core walls which define an enclosed core. The core walls include an inlet at or below a predetermined height. The apparatus includes a platform positioned in the core at a location above the predetermined height substantially separating the core into a lower air intake chamber and an upper air discharge chamber. The platform further includes a filter in the lower chamber and a blowers drawing air from the intake chamber through the filter to the upper chamber. Finally, a core lid is positioned at the top of the core and includes air discharge vents. The discharge vents are side vents proximate each of the core walls for discharging air in a substantially horizontal direction out from each of the core walls to form an envelope of clean, filtered air for the workspace.Type: GrantFiled: June 5, 1991Date of Patent: January 19, 1993Assignee: Centercore, Inc.Inventors: George E. Mitchell, Michael H. Pelosi, III
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Patent number: 5167576Abstract: In a lighting-fitting comprising a socket-structure for an electrical lamp and a filter device to remove smoke components of cigars and cigarettes, which device is provided with an electrical blower (6) and at least one smoke filter (3,4), the socket-structure is housed within a first hood (1), which is placed within a larger second hood (2), such that a space between the first hood and second hood forming a smoke channel (7, 7') extending to the filter device is defined. Furthermore, the socket-structure is designed for at least one TL-tube, while the smoke filters (3,4) are located within the second hood (2) over the top of the first hood (1), and the first hood (1) can easily be assembled and disassembled relative to the second hood (2). In a preferred embodiment, the space between the first hood (1) and the second hood (2) defines an exhaust channel (12) extending from the filter device, to exhaust filtered air.Type: GrantFiled: November 9, 1990Date of Patent: December 1, 1992Inventor: Wilhelmus A. H. Hoek
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Patent number: 5149299Abstract: A stairwell, in a split or multi level home provides access to and air communication with lower-level, mid-level and upper-level rooms, resulting in a chimney effect of continuously drawing higher temperature and highest temperature room air from the lower-level room. Vertically directed downward axial fans of a room-air interceptor device, emplaced in the lower-level room at its ceiling and at its entrance to the stairwell, not only eliminates such chimney effect; but also intercepts and recirculates temperature-layered room air in the lower-level room, resulting from gravity circulation, to dissipate such temperature-layered room air to render the room air temperature in the lower-level room more uniform and, hence, more comfortable for human habitation and enjoyment.Type: GrantFiled: February 27, 1992Date of Patent: September 22, 1992Inventor: James F. Sauer
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Patent number: 5078574Abstract: Floor to ceiling room temperature gradients are minimized by a portable floor mounted upstanding tubular unit having air intake ports adjacent the bottom, an open top with air directing louvers, and an electric motor driven fan having blades spanning the interior of the tube above the ports and substantially below the open top. The unit can be positioned on the floor of a room in an out of the way location and will circulate air throughout the room without causing a draft to minimize temperature variations between the floor and the ceiling of the room. The unit receives air adjacent the floor and projects it in a substantially confined upstanding column to the ceiling where it is dissipated throughout the room area to flow back to the intake ports of the unit.Type: GrantFiled: November 19, 1990Date of Patent: January 7, 1992Inventor: George D. Olsen