Patent ID: 6787031
Filing Date: 2004-09-07
Classification: B01D,Y10S

Abstract:
A method of making a filter cartridge for removing particulates from a fluid stream moving one direction through the filter cartridge and that is periodically subject to cleaning fluid moving in an opposite direction of the fluid stream, the method comprising:forming a filtration media into a substantially tubular configuration having a plurality of circumferentially spaced apart pleats formed therein; applying a polyester retention device media of a polyester thermoplastic elastomer material capable of withstanding elevated operating temperatures and operating environment that the filter cartridge is exposed to; and where applying the polyester retention device includes forcing the polyester retention device into the area between the pleats of the filtration media, to limit radial movement of the filtration media in the opposite direction when subjected to the periodical cleaning fluid and to maintain pleats in the filtration media circumferentially spaced apart.