Liquid purification or separation – Recirculation
Patent
1978-05-16
1981-01-13
Spear, Jr., Frank A.
Liquid purification or separation
Recirculation
210456, 2103213, 2104335, 2105002, B01D 3100
Patent
active
042448204
ABSTRACT:
A fluid purification system for performing filtration of particles from a feed liquid by a tangential flow of the feed liquid over a membrane surface. In one embodiment, the purification system includes a filter cartridge contained within a filter housing having ports permitting ingress and egress of feed liquid and filtrate. The cartridge includes a filter element having a layered construction with a thin flow channel between the layers. One layer of the filter element is formed of a sheet of impervious material defining one wall of the thin flow channel. Another layer of the filter element is spaced from the one layer and formed of a sheet of permeable membrane material and defines another wall of the thin flow channel. The spacing between the walls of the thin flow channel is maintained by a sheet of reticular material that provides turbulence in the thin flow channel to promote cross flow filtration. The filter element is formed into a pleated, cylindrical shape with a flow axis parallel to the pleats.
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Hauk Dale I.
Tanny Gerald B.
Gelman Instrument Company
Spear, Jr. Frank A.
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