Shut-off valve apparatus

Details Shut-off valve apparatus Shut-off valve apparatus

1976-10-21

1978-03-07

Granger, Theodore A.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Check valve

210235, B01D 2710

Patent

active

040778762

ABSTRACT:
The invention relates to a shut-off valve assembly for use with a filter carriage where the upper portion of the filter cartridge cooperates with the valve assembly for controlling fluid flowing into and out of the inlet and outlet port of the cartridge once the cartridge is removed from service. Cartridge removal causes the shut-off valve to automatically close fluid flow into and out of the cartridge. A valve abutment member in the shut-off assembly serves to shut off fluid inlet flow and a sealing member on a support member of assembly, serves to seal the shut-off assembly at the fluid inlet port. A ball check mounted in a retainer of assembly is biased in the downward direction during fluid shut-off.

REFERENCES:
patent: 2431782 (1947-12-01), Walton et al.
patent: 2894630 (1959-07-01), Humbert, Jr.
patent: 2932400 (1960-04-01), Scavuzzo
patent: 2945591 (1960-07-01), Pall
patent: 3040894 (1962-06-01), Pall
patent: 3715032 (1973-02-01), Nicko
patent: 3954624 (1976-05-01), Petrucci

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