Polymeric film filter assembly

Details Polymeric film filter assembly Polymeric film filter assembly

1991-02-22

1992-04-14

Spear, Frank

Liquid purification or separation

Casing divided by membrane into sections having inlet

Pleated membrane

210446, 210464, B01D 6118

Patent

active

051045362

ABSTRACT:
A flexible inflatable filter assembly or device is provided in pouch or sleeve form for filtration of fluid comprising at least one fluid porous dead-end filter panel located internally within the pouch or sleeve with the opposite end edges of the filter panel sealed respectively to first and second polymer film fluid-barrier panels that form the pouch or sleeve so that the respective pouch or sleeve is divided into separate internal chambers, one of which may serve for collection of permeate fluid. The device has a flat two-dimensional form when empty but can assume an inflated three-dimensional form when containing fluid under pressure. The device being constructed of sterilizable thin plastic film, can be cut into transverse segments (for purposes of analysis, further processing, etc.) which can be a segment comprising each filter panel or a segment containing a liquid or non-liquid fluid permeate.

REFERENCES:
patent: 3506130 (1970-04-01), Shaye
patent: 3675780 (1972-07-01), Marshall et al.
patent: 4035304 (1977-07-01), Watanabe
patent: 4265760 (1981-05-01), Abel et al.

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