Filter cartridge with truncated sawtooth projection assembly

Details Filter cartridge with truncated sawtooth projection assembly Filter cartridge with truncated sawtooth projection assembly

1987-12-03

1989-09-12

Fisher, Richard V.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

210485, 210489, 55492, 55500, 55503, 156556, 156578, B01D 2708

Patent

active

048657387

ABSTRACT:
A filter cartridge having an improved end cap and tube support design is taught. Briefly stated, an outer cage has circumferentially disposed thereround a plurality of truncated triangular shaped saw tooth-like projections each of which as a rounded nub or projection at the outermost truncated end. An inner cage similarly has a plurality of alternating projections coextensive therewith, with the thickness of the furthermost portion of the projection being tapered towards the bottom where the projection meets the end of the inner cage. The inner cage is disposed within the outer cage and placed between end caps having circumferential regions adapted to receive the projections disposed at the end of the outer and inner cage respectively. A filtration medium is disposed between the inner and outer cage.

REFERENCES:
patent: 3486626 (1969-12-01), Close
patent: 4104170 (1978-08-01), Nedza
patent: 4301012 (1981-11-01), Puckett
patent: 4505816 (1985-03-01), Wozniak et al.
patent: 4521309 (1985-06-01), Pall
patent: 4536291 (1985-08-01), Hoffman et al.
patent: 4609465 (1986-09-01), Miller
patent: 4618422 (1986-10-01), Sasaki et al.
patent: 4680118 (1987-07-01), Taga

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