Automatic valving system

Details Automatic valving system Automatic valving system

1975-11-24

1977-05-24

Schwadron, Martin P.

Fluid handling

Liquid level responsive or maintaining systems

137842, F15C 114

Patent

active

040248879

ABSTRACT:
Disclosed is an automatic valving system for shutting off liquid flow into a container when the level of liquid within the container is above a predetermined level, and for permitting liquid flow when the liquid is below the predetermined level. A liquid is positioned within the container at the predetermined level, and a pressure responsive shutoff valve is fluidly connected in series between a source of liquid under pressure and the interior of the container. The shutoff valve has communication with the fluid sensor and is operative to shut off liquid flow into the container in response to a pressure variation received from the sensor upon the level of liquid within the container rising above the predetermined level.

REFERENCES:
patent: 2408603 (1946-10-01), Broithwaite et al.
patent: 3267949 (1966-08-01), Adams
patent: 3269404 (1966-08-01), Lebow
patent: 3277914 (1966-10-01), Marion
patent: 3335746 (1967-08-01), Lebow
patent: 3415268 (1968-12-01), Tweed
patent: 3469593 (1969-09-01), O'Keefe
patent: 3561465 (1971-02-01), DEGraaf
patent: 3703907 (1972-11-01), Richards
patent: 3712136 (1973-01-01), Morsen

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