Fluid filter cartridge

Details Fluid filter cartridge Fluid filter cartridge

1975-07-11

1976-10-12

Lutter, Frank W.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

210443, 210DIG17, B01D 2702

Patent

active

039856577

ABSTRACT:
A fluid filter cartridge having spaced inner and outer perforated walls forming concentric chambers. End plates cap the ends of the walls with one of the end plates being centrally apertured to provide a passageway in communication with the inner wall chamber. A filtering media, preferably of cotton and wood fibers, is packed in the chamber between the inner and outer walls.
The improvement comprises a plurality of surface deformations in one of the walls, preferably the outer wall, extending into the filtering media toward the other wall. The surface deformations engage and compress the filtering media contiguous thereto to provide filter flow paths from the one wall to the other of a higher density than that of the uncompressed filtering media.

REFERENCES:
patent: 1905919 (1933-04-01), Levis
patent: 2181608 (1939-11-01), Russell et al.
patent: 2537897 (1951-01-01), Hunter
patent: 2850168 (1958-09-01), Nostrand
patent: 3146194 (1964-08-01), Hathaway
patent: 3724670 (1973-04-01), Gernhardt

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