Two-stage filter apparatus

Details Two-stage filter apparatus Two-stage filter apparatus

1987-05-15

1988-11-29

Fisher, Richard V.

Liquid purification or separation

Recirculation

Of filtrate

210258, 210297, 2105121, 210167, 210DIG8, B01D 3304, B01D 3600

Patent

active

047879726

ABSTRACT:
A two-stage filter apparatus for removing particles entrained in a liquid wherein the liquid is initially presented to the first filter stage having an endless filter belt for removal of a portion of the entrained particles to result in a liquid having a decreased density of particles. This resulting liquid of decreased density is then presented to a cyclone filter in the second filter stage and divided into two parts, one part which is substantially free of any particles which is then available for its intended use and a second part that is presented to another endless filter belt and returned serially to the first filter and then the second filter stages for subsequent filtering of particles.

REFERENCES:
patent: 3456798 (1969-07-01), Urdanoff
patent: 3608472 (1971-09-01), Pelster et al.
patent: 3616909 (1971-11-01), Lowrey et al.
patent: 3759388 (1973-09-01), Thomason
patent: 3970552 (1976-07-01), Bongert
patent: 4081375 (1978-03-01), Deal et al.
patent: 4110218 (1978-08-01), Marriott et al.

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