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| Number | Title | Issue Date |
| 7431640 | Self-brushing air moving device An air moving device assembly in a computer system has an air moving device such as a fan or blower within a housing for moving air from an air inlet to an air outlet. A mesh with a plurality of openings covers the air outlet. A back flow damper assembly is position... | 10/07/2008 |
| 7416481 | Blower exhaust backflow damper A system, method, and apparatus for preventing exhaust backflow into a blower are disclosed. Embodiments may include a blower system with an invertible blower chassis having a blower exhaust to direct airflow from the blower chassis at an airflow angle. The system m... | 08/26/2008 |
| 7320636 | Exhaust fan assembly having flexible coupling An exhaust assembly is provided for expelling contaminated air from a building. The assembly includes a plenum, a fan assembly attached to the plenum, and a windband mounted on top of the fan assembly. The fan assembly is constructed of cylindrical outer and inner w... | 01/22/2008 |
| 7302967 | Reverse flow preventing device and electronic apparatus A reverse flow preventing device arranged in a flow path of fluid formed by a fan and an electronic apparatus equipped with the same. The reverse flow preventing device has a frame, a plurality of support shafts arranged about the center of the frame and mounted on ... | 12/04/2007 |
| 7200005 | Method and apparatus for generating electricity using recycled air from a computer server In one embodiment, the invention is a method and apparatus for recycling exhaust air expelled from a computer server (e.g., a unit including microprocessors such as a standard server or a mainframe). In one embodiment, at least one windmill (e.g., a standard windmil... | 04/03/2007 |
| 7147554 | Hooded exhaust vent A hooded exhaust vent having walls bounding an exhaust opening covered by a guard, in the assembly of which the walls and guard respectively have laterally extending slides urged in sliding movement into slide tracks in the path of the movement to establish a slidin... | 12/12/2006 |
| 7128526 | Anti-reverse flow mechanism for centrifugal blowers A set of cooling air blowers for machines which require cooling air during operation. The blowers each include an outlet having an anti-reverse flow feature for preventing the flow of air into the blower from externally of the machine should the blower fail, thereby... | 10/31/2006 |
| 7125332 | Ceiling radiation damper and mounting method A ceiling damper system that comprises a damper housing having an input opening to accept air from a heating, ventilation and air conditioning HVAC system, and an output opening to supply the HVAC air to a room. The system further comprises a damper mechanism to sub... | 10/24/2006 |
| 7077742 | Pressure relief valve and method of forming the same A pressure relief valve (10) includes a housing (12) with a peripheral side wall defining at least one central airflow passage and at least one flap valve element (14). The housing (12) and the flap valve element (14) have a molded... | 07/18/2006 |
| 7025086 | Reverse flow preventing device and electronic apparatus A reverse flow preventing device arranged in a flow path of fluid formed by a fan and an electronic apparatus equipped with the same. The reverse flow preventing device has a frame, a plurality of support shafts arranged about the center of the frame and mounted on ... | 04/11/2006 |
| 6953320 | Ventilation fan A ventilation fan assembly (10) having a fan (22) mounted in a housing (12) and a shutter assembly (60). The housing has a square inlet portion (12C), a circular center portion (12E) and a conical outlet portion (12D)... | 10/11/2005 |
| 6938683 | Radiator A radiator, adopted on electronic devices with radiator fans installed in series, includes a case, two or more radiator fans and a membrane check valve. The radiator fans are located on the inner wall surface of the case. The membrane check valve has a frame, at lea... | 09/06/2005 |
| 6899516 | Transverse type blowers A blower includes a base having a transverse passage for receiving a motor therein and a fan device driven by the motor extends from a hole in an end of the base. A casing including an outlet is connected to the base and mounted to the fan device. An anti-back devic... | 05/31/2005 |
| 6682415 | Quick connect dryer vent A replacement dryer vent for remodelers includes a typical exterior vent portion and an interior tube portion. The tube portion extends into the building and has an internal diameter that increases towards its innermost edge, i.e., toward the interior of ... | 01/27/2004 |
| 6666762 | Ventilation system A power assisted ventilation system for a conservatory of the type having a roof extending away from a wall or other supporting structure that is mountable where the roof meets the wall of other supporting structure has a back plate mountable to the wall ... | 12/23/2003 |
| 6616404 | Ventilation fan A ventilation fan assembly (10) having a fan (22) mounted in a housing (12) and a shutter assembly (60). The housing has a square inlet portion (12C), a circular center portion (12E) and a conical outlet portion (12D) having rifling grooves (20). The shou... | 09/09/2003 |
| 6599183 | Shutter assembly for an intake opening in an exhaust fan A shutter assembly for an intake opening in an exhaust fan for improving heating and cooling efficiency of a structure by preventing air in the structure from flowing through the exhaust fan and out of the structure. The shutter assembly for an intake ope... | 07/29/2003 |
| 6554698 | Fan one way air valve A valve for a vent. The valve includes an inner leaf having a closed state which covers the vent and blocks gas flow through the vent in a first direction, and an open state which opens the vent and allows gas flow through the vent in a second direction. ... | 04/29/2003 |
| 6524181 | Garage venting device Apparatus for removing excessive heat which has built up in a garage, including vents, movable louvers connected to each vent, exhaust fans, and a fan motor. The fan motor may be controlled by a manually-operated switch or a thermostat.... | 02/25/2003 |
| 6462945 | Apparatus and method for cooling a heat generating component An apparatus and method for cooling a heat-generating component according to which a body member is placed over a portion of a heat sink so that flanges on the body member engage the component. The body member is forced away from the heat sink so that the... | 10/08/2002 |
| 6443834 | Site-of-use installed venting apparatus A simplified installation construction for a venting device which requires from a select one of several sizes of an input diameter a correlation to a matching diameter of a flexible conduit, the simplification resulting from using an interconnection of th... | 09/03/2002 |
| 6386828 | Ventilation fan A ventilation fan assembly (10) having a fan (22) mounted in a housing (12) and a shutter assembly (60). The housing has a square inlet portion (12C), a circular center portion (12E) and a conical outlet portion (12D) having rifling grooves (20). The shou... | 05/14/2002 |
| 6190122 | Intake and exhaust air damper with movable motor fan assembly An intake and exhaust fan assembly is provided having a motor and fan assembly mounted for movement on rails toward and away from a rotatable blade damper mounted on an angle to the motor/fan assembly.... | 02/20/2001 |
| 6149698 | Apparatus for installing a ventilation fan An apparatus, for installing a ventilation fan, highly effective for preventing dust, gas or the like from coming in a room has been provided by the present invention. An apparatus 1 for installing a ventilation fan comprises a L-shaped housing 5, for fix... | 11/21/2000 |
| 6108203 | Cooling system for a computer system having dual fans and a movable baffle A computer system includes a housing that is divided into three compartments; two fan compartments, each containing a fan, and a third compartment containing heat generating electronic components. The air discharged from the fans flows through outlets in ... | 08/22/2000 |
| 6039533 | Fan blade, structures and methods An aerodynamic-shaped fan blade for use in a fan apparatus. The blade has a cross-section which is essentially an inverted pan-shape with an intermediate section, a leading edge section, and a trailing edge section which form concave and convex surfaces. ... | 03/21/2000 |
| 6031717 | Back flow limiting device for failed redundant parallel fan A plurality of parallel fans are mounted for moving side-by-side columns of air in a chassis. A louver member is provided adjacent each fan. Each louver member is bendable from a closed position to an open position by a flow of air generated by its respec... | 02/29/2000 |
| 6010307 | Propeller, structures and methods An aerodynamic-shaped propeller blade. The blade has a cross-section which is essentially an inverted pan-shape with an intermediate section, a leading edge section, and a trailing edge section which form concave and convex surfaces. The trailing edge has... | 01/04/2000 |
| 6011689 | Computer component cooling fan closure device and method thereof Disclosed is a system for assisting in preventing over heating of the internal electrical components of a computer in the event of a failure of one of the adjacent fans of an array of fans employed to circulate cooling air over the components. The fans in... | 01/04/2000 |
| 5921862 | Air flow reversal prevention door assembly An air flow reversal prevention door is mounted to a discharge opening of a ventilation fan. The door includes a frame member with a void in it to permit air flow to pass through the frame and is attached fixedly to a shaft which supports the door and is ... | 07/13/1999 |
| 5890959 | High efficiency blower system with integral backflow preventor In a multiblower system for cooling electronic components, each blower has a backflow preventor. The backflow preventor has two pieces of flexible material and a screen attached to the intake side of the blower assembly. Each of the pieces of flexible mat... | 04/06/1999 |
| 5793610 | Multi-position air regulation device The present invention provides a cooling fan system for a chassis configured to contain heat generating electrical components and to assume horizontal and vertical alternative operating orientations. The cooling fan system includes a support member secura... | 08/11/1998 |
| 5735739 | Insulated external exhaust's end An outdoor exhaust's end of part of an indoor building system requiring an exhaust duct to evacuate air or other kinds of smoke or gases to the building's outside. The exhaust's end comprising a double enclosure that prevents the outdoor air from comming ... | 04/07/1998 |
| 5711091 | Soffit mounted dryer vent A new Soffit Mounted Dryer Vent for offering a non-maintenance exhaust vent system for a clothes dryer vent that terminates in a soffit of a roof overhang. The inventive device includes a flange, a dryer hose adapter ring, an outlet fitting, and a vent fl... | 01/27/1998 |
| 5692955 | Forced air vent for a roof eave A forced air vent for allowing the unidirectional outflow of exhaust air from the interior of a structure into the atmosphere by way of an eave opening includes a generally rectangular main body, arranged with a perforate bottom wall and a pair of opposit... | 12/02/1997 |
| 5645483 | Smoke reducing power roof ventilator A ventilator to be mounted over a square opening in a roof of an establishment producing smoke below. The ventilator has a lower transitional section transforming a square configuration into a round configuration and an upper section in the shape of a cyl... | 07/08/1997 |
| 5360372 | Control system for doors of a negative air pressure enclosure A decontamination chamber entranceway to an asbestos removal work area includes rigid swinging doors for a rapid escape from the contaminated work area due to an emergency such as a fire or smoke. Also during a power failure it is easy for the workers to ... | 11/01/1994 |
| 5288202 | Centrifugal regulator device for opening and closing the shutter of an axial electric fan unit and an electric fan unit utilizing this device A centrifugal regulator device for opening and closing the pivoted-vane shutter associated with an electric fan unit, has a base element connected for rotation with the fan and an actuator member guided for movement towards and away from the base element ... | 02/22/1994 |
| 4872398 | Air vent throat of indoor ventilating device capable of preventing noise An improved air vent throat of indoor ventilating device capable of preventing noise where in an outlet throat is installed at the air exhaust port to connect the vent windpipe of the device for bettering the air flow and vibration, a concave check valve ... | 10/10/1989 |
| 4779518 | Whole house ventilating method, system and appartus A method of and apparatus for controlling air flow through the medium of a circular frame structure upon which is pivotally mounted a plurality of shutters, the frame being adapted to be secured to a ceiling of a room or space in which ceiling an opening ... | 10/25/1988 |
