Flexible membrane filter assembly

Details Flexible membrane filter assembly Flexible membrane filter assembly

1979-10-29

1981-08-18

Spear, Jr., Frank A.

Liquid purification or separation

With repair or assembling means

Sliding or rolling on guide means

210356, 210448, 210462, B01D 3100

Patent

active

042845050

ABSTRACT:
A membrane filter assembly is disclosed which employs at least one filter membrane and includes support means to prevent overflexing or overstressing of the filter membrane when high fluid pressures occur. The membrane support means includes a substantially co-extensive support or back-up surface spaced a small distance from the membrane to allow liquid flow therethrough but to prevent stretching or flexing beyond its elastic limit. Preferably the support surface comprises a second filter membrane in parallel flow relationship with the first to provide high flow rates during normal flow conditions but which flex together during high pressures conditions to mutually support one another and to prevent further flexure of either membrane beyond its elastic limit.

REFERENCES:
patent: 2376739 (1945-05-01), Walker, Jr.
patent: 2591056 (1952-04-01), Ericson
patent: 3228877 (1966-01-01), Mahon
patent: 3343681 (1967-09-01), Madden
patent: 3353678 (1967-11-01), Dragon

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