Liquid purification or separation – Filter – Within flow line or flow line connected close casing
Patent
1979-03-26
1981-06-30
Sever, Frank
Liquid purification or separation
Filter
Within flow line or flow line connected close casing
55156, 210448, 210472, 210484, B01D 1900
Patent
active
042761700
ABSTRACT:
A vented filtration device comprising a closed, flexible and compressible housing having a liquid inlet and a liquid outlet. The housing includes an internal passage connecting the inlet and the outlet. A liquid filter assembly is disposed within the passage between the inlet and outlet thereby defining an upstream pressure section between the inlet and the filter and a downstream pressure section between the filter and the outlet. This assembly includes a flexible, porous bacteria retentive filter membrane, a flexible, porous support material overlying one surface of the filter membrane and a frame having at least one large central opening overlying the opposite surface of the filter membrane. A gas vent located in the housing communicating with the upstream pressure section of the passage is adapted to allow gas but not liquid to pass from the upstream section out of the housing.
REFERENCES:
patent: 3523408 (1970-08-01), Rosenberg
patent: 3631654 (1972-01-01), Riely et al.
patent: 4035304 (1975-06-01), Watanabe
Critikon Inc.
Sever Frank
Tobin Donald B.
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