Liquid purification or separation – Filter – Movable medium
Patent
1986-03-07
1987-08-11
Fisher, Richard V.
Liquid purification or separation
Filter
Movable medium
210387, 210396, 210456, B01D 3304, B01D 3522
Patent
active
046860428
ABSTRACT:
A gravity liquid filtration apparatus with increased filtering efficiency includes a frame; a pool-forming assembly mounted in the frame, the pool-forming assembly including two spaced-apart, rotatable containment discs and a discharge element mounted between the two containment discs; a filter medium supply roll; a filter medium carrier assembly for pressing an elongated filter medium supplied by the filter medium supply roll against the peripheries of the two containment discs along corresponding bottom arcs thereof, this filter medium carrier assembly being intermittently operable to move new filter medium against the two rotatable containment discs; and a liquid input element for supplying liquid influent between the two containment discs and downwardly onto a downwardly sloped portion of the filter medium. The discharge element operates to help solid contaminants which have deposited on the filter medium to be removed with the filter medium as it passes away from contact against the two containment discs.
REFERENCES:
patent: 620786 (1899-03-01), Koerper et al.
patent: 2720973 (1955-10-01), Gross
patent: 2876904 (1959-03-01), Fowler
patent: 4057437 (1977-11-01), Kracklauer
EMCO Filtration Systems, Inc.
Evans Linda S.
Fisher Richard V.
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