Piston filtering device

Details Piston filtering device Piston filtering device

1987-05-21

1989-01-24

Fisher, Richard V.

Liquid purification or separation

Filter

Movable medium

422101, B01D 3300

Patent

active

048000205

ABSTRACT:
A filtering device of the piston-cylinder type having a piston (P) and a cylinder (C) with reduced cross-sections (36) and (16) to create a pressurization chamber to force all fluids within the closed end of the cylinder into the piston as the piston is urged toward the closed end of the cylinder.

REFERENCES:
patent: 3512940 (1970-05-01), Shapiro
patent: 3802843 (1974-04-01), Kim
patent: 4035294 (1977-07-01), Landers et al.
patent: 4057499 (1977-11-01), Buono
patent: 4131549 (1978-12-01), Ferrara
patent: 4189385 (1980-02-01), Greenspan
patent: 4454231 (1984-06-01), Cais et al.
patent: 4456690 (1984-06-01), Cais et al.
patent: 4510058 (1985-04-01), Cais et al.
patent: 4587221 (1986-05-01), Cais et al.
patent: 4588556 (1986-05-01), Sarstedt
patent: 4643981 (1987-02-01), Card

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