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| Number | Title | Issue Date |
| 7909686 | Flood and combustion air vent A flood and combustion air vent includes a louvered panel supporting a rodent screen for placement across an opening in a wall or door of an enclosed space in a building. The apertures in the louvered panel and rodent screen are sized to accommodate ingress and egre... | 03/22/2011 |
| 7731575 | Ventilation unit which can be dressed like a tight suit or similar A ventilation unit includes a casing which has two openings and an electric connection passage, a filter cartridge, a turbine disposed inside the casing and having an input and an output and a motor, a duct linking the output to the outside area of the casing via th... | 06/08/2010 |
| 7097557 | Insulated crawlspace vent apparatus, and methods of installing same An insulated crawlspace vent to provide airflow in a crawlspace in the summer and insulate it in the winter. An aluminum extrusion built as a picture frame is glued to the opening in the foundation of the crawlspace. An insulated door closes from the outside and is ... | 08/29/2006 |
| 6875102 | Moisture resistant wall vent A moisture resistant wall vent for use in an exterior wall of a building includes a louvered front panel substantially in the plane of the wall surface whether the wall has a stucco finish, conventional wall finish or a brick surface. Alternatively, the louvered pan... | 04/05/2005 |
| 6746324 | Combustion air wall vent A combustion air vent for use with an extension wall of a building includes a louvered panel substantially in the plane of the stucco wall surface. Top, bottom, left and right side panels extend from the edges of the louvered panel for a distance substantially comme... | 06/08/2004 |
| 6669554 | Ventilating sill plate for crawl spaces A hidden ventilating sill plate is fundamentally a new building product, installed along the top surface of the exterior perimeter foundation. It replaces the existing wood sill plate. The invention has a continuous set of air slot channels of a proscribe... | 12/30/2003 |
| 6585582 | Vent attachment for a flexible wall An externally threaded nipple (24) fits through a circular opening (38) in a flexible wall (14). The nipple (24) is carried by a first ring member (18). An internally threaded second ring member (20) is screwed onto the nipple (24). The first and second r... | 07/01/2003 |
| 6138424 | Vent apparatus for attachment to a building structure Vent apparatus for a building includes a frame within which are positioned two spaced sets of louvers. The louvers of each set of louvers have openings therebetween and the openings of each set of louvers are covered by the louvers of the other set of lou... | 10/31/2000 |
| 5906083 | Modular louver system A modular louver assembly comprises a peripheral frame having a sill, a header and jambs defining a rectangular primary opening, a plurality of intermediate frame members joined to the peripheral frame and dividing the primary opening into a plurality of ... | 05/25/1999 |
| 5782051 | Water resistant louver The instant invention is a water resistant louver characterized by an aesthetically pleasing two piece front louver frame affixed to a posteriorally positioned aluminum mesh screen in turn affixed to a spacer frame behind it that encompasses a plurality o... | 07/21/1998 |
| 5769916 | Filter ventilator A filter ventilator for installation in an opening of a wall of a switchgear cabinet or the like, having a base housing receiving the filter, which is covered with a finned screen and which is connected with a ventilator on a side facing away from the fin... | 06/23/1998 |
| 5729935 | Gable vent A gable vent assembly comprising a mounting ring and a cover member. The mounting ring includes a plurality of distinct lengths, one of which is formed in two parts to enable easy manipulation of portions thereof when the mounting ring is positioned over ... | 03/24/1998 |
| 5690719 | Removable filter for a forced air duct grill A filter apparatus for mounting over an opening at an end of a forced air system duct has a filter frame with sidewalls between open front and back ends and a channel which opens inwardly of the sidewalls. At the front end is a sheet of preferably self ch... | 11/25/1997 |
| 5421775 | Compartment ventilating apparatus A compartment ventilating apparatus prevents its indoor louver (22) from being subjected to the formation of dew, and, therefore can prevent the dew built up in its ventilation area in the form of ice, which enables the apparatus to keep a sufficient vent... | 06/06/1995 |
| 5349799 | Plastic gable vent A plastic gable vent for placement on the wall of a building to provide a louver wherein siding abuts the gable vent comprising a plastic body having a front wall and a peripheral wall circumscribing the front wall. A plurality of integral longitudinally ... | 09/27/1994 |
| 5201879 | Vent for enclosures A vent arrangement is provided for enclosures that prevents the entry of water into the enclosure and that also prevents the penetration of a pry bar or probe wire. The vent arrangement includes a first predetermined pattern of openings of predetermined s... | 04/13/1993 |
| 4915023 | Aluminum air vent of louver A decorative self-channeling louver or air vent for flush mounting to exterior walls of building comprises a wooden frame having a polygonal shape, a plurality of aluminum fins resembling wooden slate, and an aluminum facing resembling wood brick molding,... | 04/10/1990 |
| 4711160 | Two-piece foundation ventilator The molded plastic rectangular shutter support housing and the mounting cover frame of the two-piece foundation ventilator are provided with connector devices for removably maintaining the shutter support housing and the mounting cover frame in assembled ... | 12/08/1987 |
