Liquid purification or separation – Flow – fluid pressure or material level – responsive – Check valve
Patent
1983-03-21
1985-02-05
Cintins, Ivars
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Check valve
210350, 210508, B01D 2938
Patent
active
044977077
ABSTRACT:
Apparatus for separating water from oil employing a cylindrical, axially compressible, flow-through, oleophilic, hydrophobic reticular foam filter body covered peripherally with and bonded to a flow impervious flexible skin of resin impregnated fabric anchored at one end within a pressure vessel by a flow-through cap assembly sealing the adjacent end of the sleeve to the chamber wall. With the remainder of the sleeved filter body slidably retained and backed within such filter chamber, pressure applied intermittently to its opposite end compresses the filter body to squeeze oil accumulations therefrom. Cap means with one-way valve elements on such opposite end of the filter body permits flow of water through the filter body in one direction while obstructing reverse flow under fluid back pressure introduced into the downstream end of the pressure vessel so as to compress the filter body axially. Back-pressure fluid also entering the narrow gap surrounding the sleeve and the pressure vessel wall helps prevent binding of the accordioning sleeve therein during compression cycles.
REFERENCES:
patent: 519565 (1894-05-01), Bommarius
patent: 622614 (1889-04-01), Fleetwood
patent: 1070249 (1913-08-01), Hall
patent: 3266229 (1966-08-01), Witkowski
patent: 4356090 (1982-10-01), Tran
Cintins Ivars
Marine Construction & Design Co.
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