Automatic flood control valve

Details Automatic flood control valve Automatic flood control valve

1979-08-24

1982-04-13

Chambers, A. Michael

Fluid handling

With leakage or drip collecting

307118, 340620, 361178, H01H 3500, G08B 2100

Patent

active

043242685

ABSTRACT:
An automatic flood control valve apparatus having a normally open valve, in combination with a latching relay for closing the valve, which latches the valve in a closed position when the relay is energized and until it is manually reset, and a single transistor sensor circuit for energizing the relay in response to a flood. A power supply circuit is also disclosed.

REFERENCES:
patent: 2924234 (1960-02-01), Wilson
patent: 3016525 (1962-01-01), Hauck
patent: 3443163 (1969-05-01), Beller et al.
patent: 3473553 (1969-10-01), Collins
patent: 3500844 (1970-03-01), Sonner
patent: 3582717 (1971-01-01), Perlaky
patent: 3770002 (1973-11-01), Brown
patent: 3796925 (1972-08-01), Breeding
patent: 3823874 (1974-07-01), Kroeck
patent: 3874403 (1975-04-01), Fischer
patent: 4126857 (1978-11-01), Lancia et al.
patent: 4210177 (1980-07-01), Moore et al.

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