Fluid filter assembly

Details Fluid filter assembly Fluid filter assembly

1992-11-16

1994-09-20

Spear, Frank

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Transparent

210436, B01D 6510

Patent

active

053486463

ABSTRACT:
A filter assembly (10) includes a hollow housing (12) having a length and first and second ends (14,16). A membrane (22) contained within and extending along the length of the housing (12) separates the housing (12) into first and second chambers (24,26). An inlet (32) is proximate to the first end (14) and is in fluid communication with the first chamber (24). An outlet (34) is proximate to the second end (16) and is in fluid communication with the second chamber (26) for allowing a flow of fluid from the second chamber (26). The membrane (22) is air permeable when dry and air impermeable when wet whereby a wetting fluid entering the first chamber (24) at the first end of the housing (12) forces air from the first and second chambers (24,26) along the length of the membrane (22) and out of the outlet (34) as the fluid wets the membrane (22) thereby de-airing the first and second chambers (24,26) from one end to the other end along the length of the membrane (22) on both sides thereof.

REFERENCES:
patent: 3905905 (1975-09-01), O'Leary et al.
patent: 4009714 (1977-03-01), Hammer
patent: 4111807 (1978-09-01), Boomus et al.
patent: 4190426 (1980-02-01), Ruschke
patent: 4319996 (1982-03-01), Vincent et al.
patent: 4369112 (1983-01-01), Vincent et al.
patent: 4906260 (1990-03-01), Emheiser et al.
patent: 4995268 (1991-02-01), Ash et al.
patent: 5252222 (1993-10-01), Matkovich et al.

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