Liquid filter having refined vent valve

Details Liquid filter having refined vent valve Liquid filter having refined vent valve

1980-03-14

1982-03-16

Spear, Jr., Frank A.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Vent control

210123, 210136, 210436, 210472, B01D 3514

Patent

active

043200010

ABSTRACT:
A device for filtering a liquid, provided with a chamber for the circulation of liquid, divided into at least two compartments by a filtering-unit mounted across the liquid path. That device comprises, in an area where the air present in the liquid or separated therefrom has accumulated, a one-way valve for exhausting air, should any overpressure take place in that area. The valve is provided with an obturator integral with a float driven by the free level of the liquid. That obturator cooperates with two opposed valve-seats for closing a passage made in the wall of the filtration chamber.

REFERENCES:
patent: 4009714 (1977-03-01), Hammer
patent: 4126558 (1978-11-01), Luceyk
patent: 4190426 (1980-02-01), Ruschke

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