Patent ID: 6916238
Filing Date: 2005-07-12
Classification: A61G,B01D,F24F,Y02A

Abstract:
1. An air diffuser for diffusing pressurized air into a space adjacent one side of the diffuser, comprising: a housing having an air impervious rear wall, air impervious side walls, and a perforated front wall, the interior of the housing forming a plenum; a filter bag having opposite sides in the plenum, one of said opposite sides facing toward the perforated front wall of the housing and the other of the opposite sides facing toward the impervious rear wall of the housing; means connecting the filter bag to a source of pressurized air so that pressurized air is supplied to the interior of the filter bag to diffuse through the opposite sides of the filter bag into the plenum toward the perforated front wall of the housing and toward the impervious rear wall of the housing; means to limit contact of the filter bag against the perforated front wall of the housing; and perforations arranged in a predetermined area of the perforated front wall of the housing to allow air to flow through the perforations and provide a substantially even flow of air from the plenum, through the perforations, and away from the predetermined area of the perforated front wall.