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| Number | Title | Issue Date |
| 7722449 | Air channel grill for security institutions A security grill for a security institution has an air inlet face, an air outlet face, and zigzag channels extending from a point adjacent the inlet face toward the outlet face. The zigzag channels are defined by slats which are bent at least twice in alternating di... | 05/25/2010 |
| 7585211 | Tubular membrane vent A sealed enclosure is provided. The enclosure includes a membrane vent adapted to mount through a wall of the enclosure, the membrane vent comprising an air permeable tubular membrane, a tubular structural support, wherein the tubular membrane is stretched over the ... | 09/08/2009 |
| 7547250 | Sleeve extending through a flexible material side wall of an outdoor enclosure for receiving an air conditioner A portable outdoor enclosure protects occupants from at least some elements of nature and includes a wall panel forming an outer wall of the enclosure. The wall panel has an opening formed of sufficient size to allow an air conditioning unit to be inserted through t... | 06/16/2009 |
| 7491120 | Trickle vent A trickle vent such as might be used in association with commercial windows is formed from PVC tubing in two convoluted paths. One or more expansion chambers are provided at turns or directional changes within the tubing which reduce or eliminate noise transmission ... | 02/17/2009 |
| 7473167 | Security module for use with ventilation grating A security module for use with a ventilation grating comprising a body, a base with a planar surface for attachment to the grating, and an outer wall extending from the base. The body has inner passageways extending from the base to the outer wall, the first portion... | 01/06/2009 |
| 7442120 | Connection adapter for conduits and ventilation units The present invention provides a connection adapter for use with a flexible or rigid conduit that fluidingly interconnects an intake or exhaust port of a ventilation unit and a conduit. The adapter comprises a unit coupler (10) having a central portion (60... | 10/28/2008 |
| 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 |
| 7328478 | Register inlet apparatus for a central vacuum cleaning system An inlet apparatus for central vacuum cleaning systems is described that can be integrated with registers commonly used with heating and air conditioning vents in residential or commercial buildings. In particular, the apparatus opens to provide a vacuum inlet that ... | 02/12/2008 |
| 7255354 | Gas-permeable plug and method for manufacturing the same A gas-permeable plug is adapted to be inserted in an insertion hole formed through a part of a casing in an inward-outward direction. The gas-permeable plug has a plug body and a permeable sheet including therein countless minute permeable pores. The plug body is in... | 08/14/2007 |
| 7236570 | Semi-permeable diaphragm sealing system A sealing system is disclosed for preventing liquid escape from the reservoir of an apparatus, such as an x-ray tube, that utilizes a diaphragm for maintaining constant liquid pressure in the reservoir. The sealing system of embodiments of the present invention cont... | 06/26/2007 |
| 7226352 | Cover structure with vent A cover structure with a vent is provided which includes a cooling fan, and a cover having a vent portion provided with a plurality of air-through holes through which air forced by the cooling fan escapes. The vent portion is formed spaced away from the cooling fan ... | 06/05/2007 |
| 7166024 | Ventilation member and vented housing using the same A ventilation member having: a breathable film transmitting gas passing through an opening portion of a housing in a state in which the breathable film is fixed to the opening portion; and a support including a supporting portion for supporting the breathable film a... | 01/23/2007 |
| 7143903 | Stopper for bottling wines A stopper for closing wine bottles. The stopper has a tubular duct to communicate residual interior gaseous atmospheric volume with the outer ambient. A membrane is secured transversely in the duct to allow the passage of gaseous atmosphere through the membrane and ... | 12/05/2006 |
| 7014558 | Cover structure with vent A cover structure with a vent is provided which includes a cooling fan, and a cover having a vent portion provided with a plurality of air-through holes through which air forced by the cooling fan escapes. The vent portion is formed spaced away from the cooling fan ... | 03/21/2006 |
| 6994621 | Ventilation member, vented housing using the same, pull-out prevention member for ventilation member and kit for forming ventilation structure A ventilation member having: a breathable film transmitting gas passing through an opening portion of a housing in a state in which the breathable film is fixed to the opening portion; and a support including a supporting portion for supporting the breathable film a... | 02/07/2006 |
| 6767279 | Ceiling vent assembly A ceiling vent assembly for providing a cover for bathroom exhausts fans. The ceiling vent assembly includes a ceiling vent assembly and a vent cover assembly which includes a support frame being securely and conventionally attached to the ceiling and being disposed... | 07/27/2004 |
| 6676508 | Magnetically controlled flow system A magnetically controlled flow system having a pivotable flap with a permanent magnet at distal ends. Two coils with magnetizable cores are mounted inside the duct and positioned so as to cooperate with the permanent magnet when the flap is in either a cl... | 01/13/2004 |
| 6601356 | Connector frame for ventilation opening A connector frame for use as a support member for mounting grilles at ventilation openings in a building structure. The connector frame allows the grills to be mounted in slightly different locations to hide imperfections at the edges of the ventilation o... | 08/05/2003 |
| 6574932 | Embeddable air duct block and method An embeddable air duct block includes a tubular member extending between a pair of rectangular plate members spaced from each other. The tubular member has a pair of open ends and an interior passageway. One plate member has an inner surface coupled to on... | 06/10/2003 |
| 6370794 | Reversible elbow for connecting flexible duct An elbow for use in a dryer duct assembly comprising at least one component for connecting a dryer vent outlet and an exhaust vent. The component has an inlet and outlet. The dryer vent outlet and one of the component inlet and outlet have a standardized ... | 04/16/2002 |
| 6299527 | Ventilation control system for a building A ventilation control system is disclosed for a building having an elongated ceiling vent opening, the system having a vent door, spaced apart brackets pivotally supporting the door on the building structure adjacent to the ceiling vent opening such that ... | 10/09/2001 |
| 6192640 | Double divisible connector frame for mounting air grilles and louvers to heating and cooling duct outlets A double divisible connector frame for use as a support member for mounting return grilles and louvers in a building structure which is rectangular in shape and having a planar surface on one side and a pair of precisely-similar spaced-apart continuous re... | 02/27/2001 |
| 6163960 | Static ventilator including a corrugated portion A static ventilator provided with a deformable corrugated portion is described herein. The static ventilator is provided with a tubular base to be installed to the roof, a sleeve to be connected to the tubular base and a cover to be installed to the free ... | 12/26/2000 |
| 5989119 | Automatic power flow fresh air inlet A modular automatic power flow fresh air inlet comprising a housing having fresh air openings between a source of fresh air and a room, having an adjustable static pressure to be ventilated. The fresh air openings may be controlled by a valve plate pivota... | 11/23/1999 |
| 5924922 | Method and apparatus for ceiling ventilation A ceiling ventilation inlet includes a housing having an air inlet aperture, an air outlet aperture, and a baffle supported for linear movement adjacent the air outlet aperture. A spring is positioned such that the baffle moves dependant upon air pressure... | 07/20/1999 |
| 5735086 | Combination roof louver and attic access hatch A combination roof louver that ventilates an attic and an attic access hatch for providing entry by a person into the attic. The device consists of two main parts, a base and a cover. The base of the device provides an entrance into an attic, and has a fl... | 04/07/1998 |
| 5728000 | Eave vent A one-piece continuous roof drip edge vent comprising an upper planar section a middle louvered section and a lower section. The upper section extends up an inclined roof so that a starter row of shingles is not necessary, the lower section abuts the hori... | 03/17/1998 |
| 5526621 | Ventilated athletic flooring system A flooring system which has a subflooring structure that is made up of two or more layers of boards laid across each other and spaced apart from each other to create an interconnected labyrinth of void spaces in the subfloor between a finished top floor a... | 06/18/1996 |
| 5522769 | Gas-permeable, liquid-impermeable vent cover A flexible, insertable vent cover is formed from a flexible, resilient material. The cover has a through passageway; a gas-permeable, liquid-impermeable membrane traversing the passageway; a diaphragm valve covering the membrane; and an annular securing r... | 06/04/1996 |
| 5236391 | Flush-mounted air intake A corrosion-free, condensation-free, flush-mounted automatic air intake has a rectangular plastic frame insertable into an agricultural building ceiling or wall opening and fastenable thereat. The frame has a flange therearound for mounting and supporting... | 08/17/1993 |
| 5088388 | Fresh-air intake with adjustable air deflectors An all season, adjustable fresh air intake for agricultural buildings is claimed which is adapted to adjust the volume, velocity and direction of fresh air drawn from the outside, through the intake and into the building suitably by exhaust fans. The inta... | 02/18/1992 |
| 4616561 | Vented heading for window unit A vented heading for the outer frame of an airtight double-hung sash window unit adapted to be seated in an opening of an exterior wall of an apartment. Vent holes in a head panel allow fresh air flow into the heading; and a baffle member at the back of t... | 10/14/1986 |
