Patent ID: 6461235
Filing Date: 2002-10-08
Classification: F24F

Abstract:
A temporary vent opening cover securable over a vent opening in a surface of a room during construction to prevent debris from entering the vent opening and accumulating in duct work associated therewith, comprising:a) a cover plate sized and shaped to cover the vent opening, said cover plate having a central portion, a peripheral portion and an inner face, said central portion extending across a substantial portion of said vent opening and said inner face being spaced outwardly from the substantial portion of said vent opening cover is secured over the vent opening; b) a plurality of air passages extending through the central portion of said cover plate and allowing air to flow past said cover plate between the duct work and the room; and c) a layer of air filter material attached to said inner face of said cover plate and covering said air passages.