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| Number | Title | Issue Date |
| 7507151 | High efficiency solar powered fan Highly efficient ventilation fans for exhausting air out from underneath roofs, and/or for being portable in use and application. The fan can include optimized airflow blades having a twisted configuration that can move at a rotational speed operation of up to appro... | 03/24/2009 |
| 7357709 | Metal vent A metal vent having an aperture for the passage of a fluid, a porous membrane sealing the aperture, wherein the components of the vent are assembled by an interference fit. ... | 04/15/2008 |
| 7243614 | Modular animal enclosure A modular animal enclosure includes a housing comprising a top portion affixed to a base portion to form a sheltered interior. The housing includes a door aperture and a climate conditioning aperture. A remove ably attachable climate conditioning unit is installed o... | 07/17/2007 |
| 7077739 | High velocity and high dilution exhaust system The high velocity and high dilution exhaust system uses a centrifugal fan provided with a tapered nozzle. The nozzle compresses the airstream exiting the fan to increase back pressure and velocity. The air flow from the fan enters a stack having a venturi further in... | 07/18/2006 |
| 7018287 | High velocity and high dilution exhaust system The high velocity and high dilution exhaust system uses a centrifugal fan provided with a tapered nozzle. The nozzle compresses the airstream exiting the fan to increase back pressure and velocity. The air flow from the fan enters a stack having a venturi further in... | 03/28/2006 |
| 6997801 | Roofing vent with sliding collar A roofing vent that includes a base a duct extending from the base. The duct includes a first end attached to the base and a second end having a hood or cover over the second end. A collar having an aperture therethrough is mounted from the duct such that the duct e... | 02/14/2006 |
| 6978803 | Flue cap A flue cap is provided comprising a body defining a plurality of attachment surfaces adapted for selectively matingly engaging a selected flue from a plurality of different size flues. The flue cap comprises a polymer material defining an attachment surface that is ... | 12/27/2005 |
| 6974379 | Vent apparatus with replaceable vent cover A vent, together with one or more building apertures, provides a route for gas exchange through a building surface. The vent comprises a base member having a vent aperture therethrough and a generally planar mounting flange on its perimeter. The base member may be m... | 12/13/2005 |
| 6954947 | Pluming vent cover A pluming vent cover is described herein which is easily manufactured and adapted to a roof on or off-site. A roof's pluming vent pipe requires a cover for both aesthetics and improved operation. In the preferred embodiment the pluming vent cover comprises an upper ... | 10/18/2005 |
| 6938631 | Ventilator for covers for boats and other vehicles A ventilator for a covering for a boat or other object includes a dome for covering air venting openings. The air vents are provided in a pair of oppositely disposed ventilator plates. The boat or other covering is firmly clamped between the ventilator plates by mea... | 09/06/2005 |
| 6805627 | Security cover for ventilation duct An apparatus for covering a vent that prevents material, either solid, liquid or gaseous from entering the vent. A plurality of baffles forms an annular space that provides a tortuous path for materials entering or leaving the vent. An alarm system may be added to t... | 10/19/2004 |
| 6691482 | Decking Decking including a profiled panel having a plurality of open-faced spaced ribs attached to a plurality of respective connecting sections. Each of the ribs defines a recessed area. A panel is received within each of the recessed areas and attached to the ... | 02/17/2004 |
| 6598668 | Exhaust system for electronic equipment enclosure A top cover for an electronic equipment cabinets where the top cover is made of upper and lower synthetic resin panels which are welded at their edges to form an air chamber therebetween. The upper panel is domed while the lower panel has a corrugated lik... | 07/29/2003 |
| 6582297 | Livestock facility ventilation exhaust air dust removal system A livestock facility exhaust system to remove a majority of the dust and other such odorous airborne particulate material from air exhausted by power ventilation equipment from a livestock confinement building and without a significant increase in static ... | 06/24/2003 |
| 6447390 | Method and apparatus for roof ventilation A roof ventilation apparatus provides a vent tile shaped like a roof tile itself, and thus is inconspicuous and unobtrusive when installed, and blends with the field and/or ridgeline tile. The base of the unit may be used to mark the opening, after which ... | 09/10/2002 |
| 6386972 | Vent apparatus A vent apparatus for cooperating with duct work associated with an exhaust fan to enable air to be exhausted from an interior room of a dwelling to the exterior environment. The vent apparatus includes a base member and a cover member releasably securable... | 05/14/2002 |
| 6383072 | Vent apparatus A vent apparatus for cooperating with duct work associated with an exhaust fan to enable air to be exhausted from an interior room of a dwelling to the exterior environment. The vent apparatus includes a base member and a cover member releasably securable... | 05/07/2002 |
| 6196915 | Vent apparatus A vent apparatus for cooperating with duct work associated with an exhaust fan to enable air to be exhausted from an interior room of a dwelling to the exterior environment. The vent apparatus includes a base member and a cover member releasably securable... | 03/06/2001 |
| 6102794 | Roof vent A roof vent for sheet material roofs and for seamed metal roofs slides along the roof as the roofing sheet expands and contracts. The vent includes a base having a radially extending base flange and a generally cylindrical body portion extending upward fr... | 08/15/2000 |
| 5947816 | Modular soffit vent A vent apparatus for cooperating with duct work associated with an exhaust fan to enable air to be exhausted from an interior room of a dwelling to the exterior environment. The vent apparatus includes a base member and a cover member releasably securable... | 09/07/1999 |
| 5816288 | Insect and frost proof vent for water storage tanks A protective vent for a water storage tank having an inner flexible fine mesh screen and an outer heavier more rigid screen with a wider mesh. Both screens are mounted on a frame structure under an extending upper protective cover. Air from the water tank... | 10/06/1998 |
| 5803805 | Structure ventilating device A ventilating device for a home or other building includes a frame for covering a ventilating opening in the structure. The frame defines a passage for communicating the ventilating opening to the atmosphere. The passage contains a freely movable valve me... | 09/08/1998 |
| 5791985 | Modular soffit vent A vent apparatus for cooperating with duct work associated with an exhaust fan to enable air to be exhausted from an interior room of a dwelling to the exterior environment. The vent apparatus includes a base member and a cover member releasably securable... | 08/11/1998 |
| 5779539 | Static venting system A static venting system includes a first larger geometrically-shaped member having a plurality of outwardly extending vertical louvers with a top margin and a bottom margin; a second smaller geometrically-shaped member is disposed within the larger member... | 07/14/1998 |
| 5765329 | Roof construction of corrugated sheets A roof construction includes spaced apart corrugated sheets held in spaced relationship by a plurality of spacers, the corrugated sheets both including apertures for dissipating heat contained in the hot air between the sheets into atmosphere and for guid... | 06/16/1998 |
| 5749780 | Roof vent A roof vent (8) comprises a conduit having an open entry end adapted for being arranged in sealing communication with an aperture in a roof surface, and an exit end spaced from said entry end, shield means (31) adapted for preventing entry of rain into sa... | 05/12/1998 |
| 5655964 | Static roof ventilator This static ventilator is made with three parts: 1) a hollow housing, triangular shaped with circumferential sidewalls and louvers attached to the outside walls, 2) a triangular shaped base fixed to the roof and 3) a cap at the top. The hollow housing is ... | 08/12/1997 |
| 5551916 | Tornado protection system A pressure stabilizing system for equalizing the pressure within an enclosure and the atmosphere during rapidly developing low pressure atmospheric conditions comprising a duct with a blow out valve or a valve positively operated by an electrical or gas o... | 09/03/1996 |
| 5435780 | Ventilated skylight A skylight (10) having a roof portion (12) with a plurality of ventilating tabs (61) and a plurality of non-ventilating tabs (62) disposed substantially parallel to and spaced above a roof (31) of a building. The ratio of ventilating tabs (61) to non-vent... | 07/25/1995 |
| 5421776 | Exhaust air hood An exhaust air hood has a tubular body and at least one plate member having a chamber inside thereof. The plate member has a planar configuration including widths gradually decreasing toward two longitudinal ends of the plate member, the chamber having an... | 06/06/1995 |
| 5213542 | Insulated heat activated ventilator A building construction includes a building structure and a ventilator, the ventilator having a stack defining a vent passage, a closure being provided for normally sealing off the vent passage, insulating material supported by the closure and providing a... | 05/25/1993 |
| 5078047 | Solar roof vent There is provided in combination with a building roof over an air space requiring forced ventilation of solar energy heated air from the space through a vent hole in the roof, an electrically operated exhaust fan mounted in air exhausting relation on the ... | 01/07/1992 |
| 5005328 | Roofing vent cover with plug detent connection A roofing slab (1) is developed in the form of a dormer, having a tube connection socket (9) provided on its lower side and a cap-shaped hood provided on its upper side, the hood leaving air passage openings free. For simplified association of the tube co... | 04/09/1991 |
| 4955167 | Roof vent pipe A roof vent pipe (1) having a mouth-side grid structure (G) is formed at least in part of annularly extending spokes and a cover cap (2) located above the spokes. The cap is interengaged via downward directed projections with the upper pipe end. To obtain... | 09/11/1990 |
| 4909135 | Roof vent structure for plastic membrane roofs A vent structure for use with plastic membrane roofs has an elongate vertical tube with a base flange to which membrane material may be heat welded. An overhanging tube cap has generally radially extending, vertical, venturi passage-creating fins which co... | 03/20/1990 |
| 4850166 | Ventilating system for roofing systems A venting system for allowing the escape of harmful water vapors trapped in the roof system. The system includes a roof deck forming the base of the roof system, a roofing membrane positioned over the roof deck, and a channel network positioned between sa... | 07/25/1989 |
| 4803816 | Roofing slab A roofing slab with vent opening which is arranged in a central region thereof and is limited by a peripheral edge collar and over which a cover extends in hood-like manner. A hose connection pipe directed towards a bottom side of the roofing slab is coor... | 02/14/1989 |
| 4759272 | Ventilator A ventilator comprising a rotating plate provided on its lower surface with blades forming a centrifugal turbine surmounting the mouth of a ventilation duct or ducts in whose axis said turbine creates an ascending vortex effect. The aspiration to which th... | 07/26/1988 |
| 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 |
| 4538508 | Roof ventilator having fluid flow control and method of making same A ventilator device for allowing escape of air from enclosed spaces such as a building includes a unitary housing provided with an insert for controlling the flow of fluid therethrough. The insert comprises a pair of insulative, tubular sleeves between wh... | 09/03/1985 |
