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| Number | Title | Issue Date |
| 8128465 | Air displacing device An air displacing device for transferring air from a first location to a second location comprising a housing including a fan, a prime mover for the fan, means defining an air inlet to receive air from the first location, and an air outlet to deliver air to the seco... | 03/06/2012 |
| 7591720 | Ventilating system A compact ventilating system having an air purifying function is disclosed, which includes a case provided in the inside of a room; an air-supplying passage for penetrating a wall through the case under a ceiling, to introduce an outdoor air to the inside of the roo... | 09/22/2009 |
| 7497771 | Ventilating system A compact ventilating system having an air purifying function is disclosed, which includes a case having one end buried in a ceiling of a room, and the other end projected toward the inside of the room; an air-supplying passage of communicating the outside of the ro... | 03/03/2009 |
| 7338358 | Apparatus for air purifying and ventilating Disclosed is a combination air purifier and ventilator. The air purifier in accordance with the present invention includes a case being provided on a ceiling or a wall and having a fan therein, a first passage communicating with an outside, an inside of the case and... | 03/04/2008 |
| 7241218 | Fire/smoke damper control system A fire/smoke damper control system is provided for use in monitoring and controlling operation of one or more fire/smoke dampers in a building. The system includes a local damper controller associated with each fire/smoke damper for controlling the opening and closi... | 07/10/2007 |
| 7094142 | Portable device with interchangeable air cleaning modules for cleaning the air outside of an existing enclosed space and delivering the cleaned air into the existing enclosed space A portable device that is placed between the ambient air outside an existing enclosed space and the existing enclosed space that pulls the ambient air through an interchangeable array of air cleaning modules and delivers the cleaned air from the air cleaning modules... | 08/22/2006 |
| 7080443 | Solid surface material fabrication station A fabrication station (117) suitable for use mobile unit (1) or as stand alone unit for fabricating solid surface construction materials is provided, as is a method of use therefor. The fabrication station is equipped with climate control units (23,... | 07/25/2006 |
| 7081049 | Ventilating system Ventilating system including a case mounted on a ceiling of a room, an inlet in a bottom surface of the case, and an outlet in a side surface of the case, a partition for dividing the case into an upper space, and a lower space, a fan in the upper space of the case,... | 07/25/2006 |
| 7011577 | Ventilating system Ventilating system including a case mounted on a ceiling of a room, an inlet in a bottom surface of the case, and an outlet in a side surface of the case, a partition for dividing the case into an upper space, and a lower space, a fan in the upper space of the case,... | 03/14/2006 |
| 6953395 | Ventilation system for underground structure A ventilation system for an underground structure which can internally supply fresh outdoor air by individually sucking and discharging air through fans of underground shafts in the underground structure such as an underground parking lot, underground warehouse, sub... | 10/11/2005 |
| 6881142 | Intelligent networked fan assisted tiles for adaptive thermal management of thermally sensitive rooms A technique to provide well-balanced airflow in a computer data center that uses fan assisted tiles coupled to a host computer through a network. In an example embodiment, this is accomplished by disposing the fan tiles, including temperature and airflow sensors and... | 04/19/2005 |
| 6843718 | Method of guiding external air in a building shell and a building; and a method of temperature control of a building In order to heat external air in a building shell and/or in a building more effectively, the present invention suggests a method for guiding external air in a building shell and in a building, an inner gap being separated from an outer gap by a permeable layer in th... | 01/18/2005 |
| 6669553 | Noise suppression and sound proof chamber The present invention relates primarily to the provision of a Sound Proof Chamber (10), and optionally also relates to an Electronic Surveillance Bug Proof Chamber. Both embodiments comprise a sealed cavity located within all walls, roof, and optionally t... | 12/30/2003 |
| 6482083 | Method and device for ventilating a so called clean room A method and a device for ventilation of a room with walls (11) and a ceiling (10), clean air being conducted at least to a portion of the room from the ceiling through a first air stream (12), and air being exhausted through first discharge openings (15)... | 11/19/2002 |
| 6241600 | Ventilation device A ventilation device is provided with a plurality of fans, each of the fans is rotated in a different direction to one another so that exhaust of inside air and intake of outside air can be conducted at the same time. Preferably, the ventilation device in... | 06/05/2001 |
| 6071189 | Air circulation system and method with return duct ventilation An air circulation system with standard and dual mode operations rapidly ventilates an enclosed area with fresh external air in the dual mode. In the dual mode of operation of the preferred embodiment, multiple barriers operate to create two airflow pathw... | 06/06/2000 |
| 6033303 | Tertiary dust control process and system for use in the machine room of a papermaking plant A process and system (60) for controlling the concentration of dust levels in a room (20) within which a paper-making, or finishing, machine (24) is housed involves a ventilation scheme which withdraws air from the room by way of ceiling vents (52) dispos... | 03/07/2000 |
| 5791983 | Demand ventilation system A pair of variable air volume fans and a set of primary and exhaust air diffusers are in atmospheric communication between a supply of ventilation air that employs the principles of thermal displacement ventilation for purging a designated smoking area of... | 08/11/1998 |
| 5788571 | Method of venting smoke from highrise residential buildings In highrise residential buildings, venting to remove smoke from corridors is required in case of fire. A method of venting smoke from a multi-floor building by providing a single supply and exhaust venting shaft communicating with each floor, with an air ... | 08/04/1998 |
| 5766072 | Ventilation arrangement, including filter constructed as sound dampener, flow damper and for filtering purposes A ventilation plant comprising fans for distribution of intake air and exhaust air in branch ducts having openings for the intake air and exhaust air. Tubular filters are sealingly attached to the openings and create a pressure drop of about 200 Pascal, w... | 06/16/1998 |
| 5702296 | Portable ventilation system A portable ventilation system includes a portable unit (1) comprising a fan (11) for sucking-in fresh air from the outdoor atmosphere and blowing the fresh air into a room, and an extraction fan (12) for sucking foul air from said room and blowing the fou... | 12/30/1997 |
| 5564980 | Room air quality conditioning system An air circulation system includes an inflow system which includes a tube enclosure or cowl suspended from a ceiling of a room or from a roof above the room. The tube enclosure or cowl is fitted with a ceiling fan. An air supply unit external to the room ... | 10/15/1996 |
| 5460570 | Ventilator for elevator cage An elevator cage with an ventilator which has supply system for supplying fresh air into the cage and exhaust system for exhausting air from the cage. An active noise controller is provided to at least the supply system to cancel noise which is caused by ... | 10/24/1995 |
| 5346426 | Method and an apparatus in ventilation A method and apparatus for the mechanical ventilation and heating of a premises with improved removal of impurities from air present in the premises. At least one suction extraction device is provided for removing polluted or stale air in a region adjacen... | 09/13/1994 |
| 5326314 | Method and system of cleaning industrial air A system and method for efficiently and economically providing a sufficient number of air changes per hour to satisfy government recommended standards for proper ventilation of industrial manufacturing facilities. The system is applicable to a building, h... | 07/05/1994 |
| 5312297 | Air flow control equipment in chemical laboratory buildings In the air flow control system of a laboratory building module, pressurization of corridors and other residual areas can be maintained neutral in relation to the outdoors by balancing the entire intake or supply flow rate and the entire exhaust rate. The ... | 05/17/1994 |
| 5312296 | False-ceiling construction and method for the flow of air in connection with a false-ceiling construction False-ceiling construction (10), which is intended in particular for institutional kitchens and which false-ceiling construction is composed of modular units, which comprise at leat an intake air unit (11) and an exhaust air unit (18) and, in the area bet... | 05/17/1994 |
| 5206173 | Air hood In a composting process, a heat conductive ventilation hood overlying a compost pile undergoing active composting. The hood is shaped so that process air emanating from the pile contacts the undersurface of the hood while ambient outside cool air is cause... | 04/27/1993 |
| 5205783 | Air flow control equipment in chemical laboratory buildings In the air flow control system of a laboratory building module, pressurization of corridors and other residual areas can be maintained neutral in relation to the outdoors by balancing the entire intake or supply flow rate and the entire exhaust rate. The ... | 04/27/1993 |
| 5178581 | Smoke evacuation system A smoke evacuation system for a building made of modular units includes sets of modular units disposed to each other and joined by a wall so as to allow a space between the modular units to define an air intake chamber. Each modular unit has a window whic... | 01/12/1993 |
| 5074894 | Apparatus for isolating contagious respiratory hospital patients An apparatus for isolating contagious respiratory hospital patients to reduce the nosocomial and airborne transmission of diseases such as tuberculosis, pertussis, influenza and measles is provided. In one embodiment, a self-contained portable and prefabr... | 12/24/1991 |
| 5069113 | Stacked and cross-connected recirculating fans in a semiconductor manufacturing cleanroom A pair of recirculating fans for semiconductor cleanroom use are stacked to allow each fan to service a smaller zone in the cleanroom than if the fans were placed side by side. Each fan controls the temperature, humidity, and particulate count for its own... | 12/03/1991 |
| 5033360 | Air quality control system An air quality control system for buildings with units, public corridors and an elevator shaft, has means for partitioning the public corridors into zones. Each of the zones have a first end in the vicinity of the partitioning means and a second end. Air ... | 07/23/1991 |
| 5000079 | Noise-attenuating ventilation pedestal for an electronic enclosure A pedestal which is open to the floor with provision for an air gap between the top of the pedestal and the electronic enclosure positioned thereabove. A plurality of air movers are mounted to the base of the enclosure and penetrate the pedestal. Air is d... | 03/19/1991 |
| 5000081 | Ventilation apparatus An apparatus including a ventilation conduit mounted within a ceiling structure of a dwelling, with an exhaust fan and intake fan arranged at ninety degrees relative to one another, with an intake pipe and exhaust pipe arranged contiguously about their ma... | 03/19/1991 |
| 4986170 | Air handling system A branch take-off airflow device for use in an air distribution system that includes coaxial input and output ducts and one or more branch ducts having a status pressure regain section and a take-off section that has a central passageway and one or more t... | 01/22/1991 |
| 4986469 | Method of ventilating an animal enclosure in response to temperature A method of ventilating an animal enclosure such as a poultry house which permits alternating use of powered sidewall ventilation, natural sidewall ventilating and powered tunnel ventilation dependant upon outside temperature, with automatic control of th... | 01/22/1991 |
| 4967645 | Air shower with directed air flow A cleanroom facility is provided with an air shower in which gasper jets are used to direct air in a preferred manner against persons entering the cleanroom facility. The gasper jets are combined with a downward air flow and with air curtains which limit ... | 11/06/1990 |
| 4955285 | System for covering the energy requirement of a room For lowering the energy requirement for a room (2) ventilated by a ventilating system (11 to 17) of a building (1), windows (4) and opaque wall parts of the outside wall (3) are designed so that the heat transfer numbers (kF and kW, respectively) are smal... | 09/11/1990 |
| 4942805 | Ventilated panel A modular office panelling system has been improved by providing an air circulation arrangement of selectively cool or remove heat from a particular area defined by the panelling system. Fans are provided in removable panel cover portions which can advant... | 07/24/1990 |
