Patent ID: 6269956
Filing Date: 2001-08-07
Classification: B01D,G21F

Abstract:
A filter for use with a filter vessel for removing particulate matter from an aqueous flow, said filter comprising:(a) a rigid support housing comprising: a base plate for surrounding a filter vessel input passage for the aqueous flow; a groove on an inside surface of said base plate having a locking seal for securingly engaging said filter vessel input passage; a sidewall including an exit passage for the aqueous flow; and, an annular seal cavity having an internal sealing surface for receiving a sleeveless disposable filter cartridge; and,(b) a sleeveless disposable filter cartridge sized to be substantially entirely received within said housing, said cartridge having a filter medium that extends across a path from said input passage to said exit passage when received in said housing, said cartridge having a terminal seal affixed to one end of said filtering medium for sealing engagement with said filter vessel, said cartridge also having an annular wall seal located on a second end of said filtering medium, said annular wall seal having an outer sealing surface sized to create a compression fit against said internal sealing surface when said cartridge sealingly engages with said internal sealing surface of said housing;wherein, said support housing may be installed in said filter vessel for an extended period and held in place by said locking seal, and repeatedly during said extended period, said cartridge may be installed within said support housing to seal said cartridge to said filter vessel and said housing, aqueous flow may be directed through said filter medium, and said cartridge may be removed and discarded.