Filter membrane with flexure

Details Filter membrane with flexure Filter membrane with flexure

1990-06-22

1991-04-02

Spear, Frank

Liquid purification or separation

Filter

Medium, cleaner or agitator moved by fluid

210450, B01D 6500

Patent

active

050045423

ABSTRACT:
A filter of the type incorporating a porous filter membrane 1. Frequently such membranes are very fragile, and the invention describes an improved way of mounting them within the housing. Attached to a perimeter portion of the membrane 1 is a thin strip 8 of flexible material such as polypropylene. The strip 8 is attached, on the one hand, to the base 4 of the filter housing by a first joint 10 and, on the other hand, to the perimeter of the membrane by a second joint 9. Between the two joints is a region of flexure which enables the membrane to float relative to the housing, thus isolating the membrane from relative movement between the membrane and the housing.

REFERENCES:
patent: 4113627 (1978-09-01), Leason
patent: 4671873 (1987-06-01), Keller

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