Filter cartridge

Details Filter cartridge Filter cartridge

1985-04-01

1986-12-02

Sever, Frank

Liquid purification or separation

Particulate material type separator, e.g., ion exchange or...

Removable cartridge or hand-manipulated container

210352, B01D 2702, B01D 3500

Patent

active

046263500

ABSTRACT:
Multiple embodiments of a filter cartridge are disclosed, the cartridge preferably being adapted for use within a housing and including a tubular outer wall element with closures at either end, one of the closures being of unitary construction and comprising an annular ring portion for attachment to the tubular element and axially central portion. Flexible spring elements interconnect the central portion with the annular ring while being adapted for flexure into a stressed condition for urging permeable membrane portions within the ring against a filter medium contained within the cartridge for producing and maintaining a compacting force on the filter medium. Preferably, the unitary end closure cooperates with the tubular wall element and the other closure as well as with portions of the housing for assuring proper fluid flow through the filter medium. A method for filling the cartridge is also disclosed wherein the flexible spring assembly of the unitary end closure is maintained in a stressed condition until the cartridge is filled and assembled, the spring assembly then being released for causing permeable membrane portions within the ring to produce and maintain a compacting force on the filter medium.

REFERENCES:
patent: 3411629 (1968-11-01), Wilber et al.

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