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Ventilation > Having Inlet Airway > Including Specific Cover Or Shield For Exterior Vent Opening > Wall Type Wall TypeWall Type patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.12/28/06 - 20060292978 - Magnetic louver grille hanging system A universal hanging system for securing louver grilles over duct openings that allows existing louver grilles to be interchanged. The hanging system comprises a ferromagnetic support member that is fastened to the surface adjacent a duct opening. A magnet is employed to removably attach a louver grille to the support ... 08/25/05 - 20050186900 - Crawlspace foundation vent covers Air vent covers for attachment to crawlspace walls, over or into air vent openings, to enclose the air vent openings and seal them against the entry of air and humidity from the atmosphere into the crawlspace. The preferred air vent covers comprises rectangular panels molded from durable plastic composition, with ... ### FreshPatents.com Support |