Dual cup-shaped supporting filter body

Details Dual cup-shaped supporting filter body Dual cup-shaped supporting filter body

1990-03-12

1991-05-21

Dawson, Robert A.

Liquid purification or separation

Filter

Divided filtered, and unfiltered liquid passages

210455, 21049701, 2105101, B01D 2708

Patent

active

050172875

ABSTRACT:
Filtering element for corrosive liquids to be filtered under pressure, which displays only minimal filtrate loss when the filter is changed, consisting of a pressure-resistant, cup-shaped outer supporting body (2) and a coaxial, also cup-shaped, pressure-resistant inner supporting body (3) having bottom surfaces (4, 5), wherein a filter cartridge (6) is disposed in the annular gap open towards the top between the supporting bodies (2, 3), said filter cartridge (6) consisting of an annular base portion (17) and cover portion (18) having inlet and outlet holes (9, 10) and, if desired, rigid or flexible wall portions (11, 12) between the base and cover portions and filtering material (15) between the wall portions, through which the liquid to be filtered is pressed radially from one hollow space to the other (FIG. 3).

REFERENCES:
patent: 3698559 (1972-10-01), Manjikian
patent: 3747765 (1973-07-01), Nowack
patent: 4388196 (1983-06-01), Lucia
patent: 4575422 (1986-03-01), Zimmer

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