Filter media cartridge

Details Filter media cartridge Filter media cartridge

1995-10-31

1997-02-11

Walker, W. L.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

2104932, 2104935, 55497, 55498, 55500, 55521, B01D 2706

Patent

active

056017170

ABSTRACT:
A filter cartridge has a pleated filter media rolled into a cylinder, a tubular core, moulded from plastic with alternate grooves and ridges provided at the outer surface and a collar with uniformly spaced teeth which envelopes the filter media to rigidly space the pleats. The collar is retained by friction and it may be displaced towards the end caps of the cartridge. The core may be withdrawn from the filter media of a waste cartridge and utilized in a new cartridge. The upper end cap has a handle with a hinge provided by a reduced section of the plastic material.

REFERENCES:
patent: 3314546 (1967-04-01), Briggs et al.
patent: 3362541 (1968-01-01), Briggs et al.
patent: 3392843 (1968-07-01), Mumby
patent: 3487943 (1970-01-01), Buckman
patent: 3520417 (1970-07-01), Durr et al.
patent: 3528557 (1970-09-01), Luchetta
patent: 4046697 (1977-09-01), Briggs et al.
patent: 4547950 (1985-10-01), Thompson
patent: 4559138 (1985-12-01), Harms, II

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