Patent ID: 6858052
Filing Date: 2005-02-22
Classification: B01D,Y10S

Abstract:
1. A filter cartridge for use in a baghouse having a tubesheet with a plurality of openings in which a flexible snapband is biased towards engagement with a surface defining one of the openings in the tubesheet and is adapted to receive a portion of said filter cartridge, the snapband having a first surface and a second surface with a pair of protrusions separated by a groove adapted to receive a peripheral edge of one of the tubesheet openings and the pair of protrusions sealingly engage surfaces of the tubesheet; said filter cartridge comprising: filter media; structure for supporting said filter media; a rigid non-metallic tubular collar integrally formed with said filter media and said structure to secure said filter media and said structure to said collar, said collar including a pair of longitudinally spaced continuous projections extending radially from said collar, said collar further including an annular surface extending from said collar for establishing the position of said filter cartridge relative to the tubesheet; and said collar adapted to be positioned within the snapband and said projections engaging the first surface of the snapband to effect sealing engagement of the snapband against a portion of the opening in the tubesheet, said first projection extending radially from said collar to further force one portion of the snapband into sealing engagement with a surface of the tubesheet on one side of the thickness midpoint of the tubesheet, said second projection extending radially from said collar to further force another portion of the snapband into sealing engagement with another surface of the tubesheet on another side of the thickness midpoint of the tubesheet.