Liquid purification or separation – Filter – Movable medium
Patent
1978-01-11
1979-04-03
Cuchlinski, Jr., William A.
Liquid purification or separation
Filter
Movable medium
B01D 3314
Patent
active
041476352
ABSTRACT:
A filter apparatus wherein filter media is submerged in liquid being filtered and suction is employed under the media to increase the flow through it. The filter media in elongated strip form is supported for movement in one direction on an inclined endless pervious conveyor comprised of rigid plate members fixed to a pair of drive chains. A receiving tank for dirty liquid is above the conveyor and media with a lower tank for clean liquid below the conveyor with the sides and ends of the lower tank being constantly sealed in order to maintain reduced pressure therein to enhance flow through the media. Filtered liquid at a somewhat higher pressure is supplied at the sides of the conveyor and at end walls of the receiving tank to prevent any migration of dirty liquid into the lower tank at the periphery of the lower tank. Advancement of the filter media is controlled automatically in response to variations in the pressure differential on opposite sides of the media which varies in proportional to the dirt load of the media.
REFERENCES:
patent: 3083831 (1963-04-01), Fowler
patent: 3091336 (1963-05-01), Hirs
patent: 3121681 (1964-02-01), Baxter
patent: 3506128 (1970-04-01), Pashaian et al.
patent: 3939077 (1976-02-01), Seibert
patent: 4037338 (1977-07-01), Berline
Cuchlinski Jr. William A.
J. R. Schneider Co. Inc.
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