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| Number | Title | Issue Date |
| 7417856 | Heat dissipation module and flow direction controlling structure thereof A heat dissipation module is disclosed. A first heat dissipation apparatus and a second heat dissipation apparatus are symmetrically disposed. A flow direction controlling structure has a rotatable element disposed between the first and second heat dissipation appar... | 08/26/2008 |
| 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 |
| 7001265 | Air exhaust system An air exhaust system comprises a chamber. The chamber has side walls, a ceiling, an attic and a roof. The ceiling and roof have air flow apertures. Provided next is a duct with upper and lower ends. A turbine fan is provided. The fan is operatively coupled to the u... | 02/21/2006 |
| 6945058 | Cooling of data centers In a cooling system for cooling racks in a data center, cooling fluid is circulated in the data center by a cooling device having a fan. In addition, this system includes a plenum having a plurality of returns and an outlet. The outlet of the plenum is in fluid comm... | 09/20/2005 |
| 6402609 | Seal vent A damper for an air turbine mounted on the roof of a house, or other structure, comprising a tube adapted to fit into the opening below the turbine, a cover hingedly attached to the tube, a cable attached to the cover adapted to be pulled out to close the... | 06/11/2002 |
| 5653632 | Photosensitive driving device A driving device which is automatically activated by detecting solar light and an automatic ventilation system utilizing the aforementioned driving device. An electric motor (21) is connected to relay switch (22), which is connected to limit switch (23) a... | 08/05/1997 |
| 5568947 | Clothes dryer air exhaust duct wall connector A wall connector for connecting a clothes dryer air outflow duct to outside ambiant air through a building external wall. The connector includes: a rigid tubular main body, extending through and mounted into an aperture in the building wall; an inner end ... | 10/29/1996 |
| 5334089 | Fume hood with adjustable baffle assembly A fume hood with an adjustable baffle system includes a housing with a chamber and a baffle system disposed in the chamber. The baffle system includes a plurality of baffle plates and a plurality of support brackets for releasably securing the baffle plat... | 08/02/1994 |
| 5176566 | Variable air flow eddy control Methods and apparatus for controlling the flow of fluid around an object which include means to periodically vary or fluctuate the direction, speed or magnitude of the fluid flow. The fluid flow is particularly controlled to control eddy formation. The fl... | 01/05/1993 |
| 5158486 | Debris and weather protector for air conditional compressor cabinets A lightweight weather-resistant cover for attachment to air conditioner compressor cabinets of the type containing a fan and having an opening in a wall of the cabinet for exhausting air. The cover has an attachment portion for attachment to the cabinet w... | 10/27/1992 |
| 5123875 | Power actuated roof vent apparatus and method of use A power actuated roof vent apparatus generally comprises an insulated air passageway housing through the roof which allows a linear and unrestricted air flow through the air passageway housing when the apparatus is in operation and an insulated passageway... | 06/23/1992 |
| 4939986 | Exhaust ventilator A ventilator assembly for attachment in an opening in a partition such as a ceiling of a structure such as a dwelling. The ventilator assembly includes a housing having an elongated body portion of sufficient length to extend through insulation which may ... | 07/10/1990 |
| 4867047 | Ventilator door and fan control assembly for range hood of a recreational vehicle A ventilator door and fan control assembly for use with a range hood which is adapted for use in a recreational vehicle wherein there is a plate associated with said ventilation door to open and close the door that is activated by a cable controlled by an... | 09/19/1989 |
| 4742765 | Power roof ventilator The invention relates to a motor-powered roof ventilator or extractor fan having its motor-impellor unit mounted within the housing for mounting on the roof or wall of a building. The centrifugal impellor draws in air through a base member adapted for att... | 05/10/1988 |
| 4738189 | Pneumatically operated fire damper A fire damper operated by an air motor for incorporating into the pneumatic piping system of a building. The damper motor holds the damper open under the influence of pressurized air from the system. A valve actuator in the flow channel of the damper has ... | 04/19/1988 |
| 4735132 | Insulating enclosure for recessed ceiling exhaust fan An insulating enclosure for recessed ceiling exhaust fan is disclosed. The insulating enclosure (10) comprises a rectangular frame (22) attached to the frame (24) of the lower panel (18). The frame (22) of the insulating enclosure (10) fits snugly against... | 04/05/1988 |
| 4724747 | Ventilator housing with a protective screen A ventilator housing with at least one protective screen for covering a ventilator positioned in a housing, whereby through-hole borings for fastening the protective screen with fastening elements are provided in the walls of the housing. The fastening el... | 02/16/1988 |
| 4709624 | Aperture seal for a roof mounted ventilator and method for making same An aperture seal (30) is providing including a base member (32) having an insulating member (34) coupled thereto. A cover member (36) is coupled to the insulating member (34) on a side opposite the base member (32). A bead of sealant (38) is coupled aroun... | 12/01/1987 |
| 4607567 | Greenhouse construction provided with special ridge for ventilation A method is provided for constructing a greenhouse or solarium structure with glazing and with provision for ventilation. This method includes supporting a blower in an enclosure having an opening for the venting of the greenhouse or solarium structure an... | 08/26/1986 |
| 4593504 | Pressure equalizing roof vent An improved vent for equalizing the pressure on the roof of a building includes a tube provided with a one-way acting valve therein for allowing air to pass from within the building to the open atmosphere but preventing entry of moisture air into the inte... | 06/10/1986 |
| 4287815 | Cover assembly for attic fans A cover assembly for an attic fan or the like permanently mounted in a wall or ceiling is provided which permits quick, easy covering of the fan opening when the fan is not in use during wintertime. The cover assembly is provided with heat insulation and ... | 09/08/1981 |
| 4245965 | Gas-handling apparatus A gas-handling apparatus includes a housing enclosure having an inlet port and an outlet port which are connected by a duct and blower assembly, wherein the blower assembly draws a gaseous substance from a room or enclosed area and transfers this gaseous ... | 01/20/1981 |
| 4231288 | Roof ventilating aperture seal A disk, having a larger diameter than the diameter of a roof vent aperture to be closed, supports an annular resilient member in contact with the inner surface of the roof around the aperture. The disk is held in place by a resilient member extending betw... | 11/04/1980 |
| 4152844 | Exhaust system for laundry dryer A portable and removable window exhaust system for home appliances requiring outdoor venting (such as portable laundry dryer) which obviates the necessity of permanent installation and piercing an exterior wall of a building to vent the appliance to the o... | 05/08/1979 |
| 3952638 | Fans for use with turbine ventilators, and methods and apparatus for supporting the same Fans for use with turbine ventilators and apparatus and methods for supporting the same, wherein the fan is supported spaced from the entrance to the turbine ventilator whereby aspiration increases the air flow through the ventilator.... | 04/27/1976 |
