Multiple by-pass filter system

Details Multiple by-pass filter system Multiple by-pass filter system

1980-01-11

1981-07-07

Spitzer, Robert H.

Liquid purification or separation

Structural installation

Closed circulating system

210193, 210196, 210335, 2104161, B01D 2704, B01D 3702

Patent

active

042773369

ABSTRACT:
A filter system for filtering cleaning solvents includes a first filter unit having mechanical filters such as paper or the like, through which the fluid is first pumped, and a second filter unit having adsorption chemicals, such as clays and charcoal, through which at least a portion of the fluid from the outlet of the first filter unit is passed and the outlet of the second filter unit is in communication with the inlet to the first filter unit for recirculating the fluid therefrom back through the first filter to filter and deposit carbon and clay particles from the second unit on the surface of the first filter unit thereby providing a multi-pass filter system.

REFERENCES:
patent: 1751613 (1930-03-01), Baylis
patent: 2757803 (1956-08-01), Robinson et al.
patent: 3203754 (1965-08-01), Young et al.
patent: 3291562 (1966-12-01), Anderson
patent: 3429148 (1969-02-01), Worthington
patent: 3503878 (1970-03-01), Durr
patent: 3561602 (1971-02-01), Molitor
patent: 3804257 (1974-04-01), Sommermeyer

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