Patent ID: 7905974
Filing Date: 2011-03-15
Classification: B01D,Y10S,Y10T

Abstract:
1. A method for making a pocket filter assembly comprising: extruding a length of header element material having a pair of longitudinally extending side walls, a longitudinally extending cross-member extending between and substantially normal with said side walls, and a longitudinally extending bottom wall joining lower edges of said side walls below and substantially parallel with said cross-member; miter cutting at approximately 45° said length of header element material into header ends and header sides; inserting one end of an “L” shaped clip into a cavity in each end of said header ends or said header sides, said cavity being defined by said side walls, said bottom wall, and said cross-member; inserting the other end of said “L” shaped clip into the other of said header ends or said header sides to form a rectangular header having a continuous channel about a downstream side, said channel defined by said cross-member and said side walls; inserting an upstream perimeter portion of a filter element into said channel, said filter element having a plurality of pockets; placing a liquid polymeric material into said channel; and solidifying said liquid polymeric material forming a header frame having said upstream perimeter portion of said filter element unitary therewith.