Optional self-retaining filter bag

Details Optional self-retaining filter bag Optional self-retaining filter bag

1991-08-12

1992-08-11

Dawson, Robert A.

Liquid purification or separation

Filter

Within flow line or flow line connected close casing

210450, 210452, 210453, 210455, 210474, 210477, B01D 2708

Patent

active

051376326

ABSTRACT:
A filter bag which is for use in a liquid filter and which includes a liquid impervious shape-retaining edge portion defining the opening into the filter bag. The edge portion includes an annular inverted V-shaped part which terminates in an annular upturned lip part. The inverted V-shaped part of the filter bag edge portion allows the bag to be placed over a protruding upwardly directed lip in the filter housing while, optionally, the upturned lip part of the bag's edge portion permits the bag to be fitted into the filter housing with the lip part being restrictively fitted between a shoulder or support and an overlying lip formed in the filter housing. Further, the upturned lip part of the filter bag can be wedged into a filter housing to secure the bag independently of the filter top.

REFERENCES:
patent: 3592768 (1971-07-01), Parker
patent: 3640392 (1972-02-01), Smith et al.
patent: 4204966 (1980-05-01), Morgan, Jr.
patent: 4259188 (1981-03-01), Morgan
patent: 4285814 (1981-08-01), Morgan, Jr.
patent: 4419240 (1983-12-01), Rosaen
patent: 4442003 (1984-04-01), Holt
patent: 4490253 (1984-12-01), Tafara

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