Hot water heater failure protection device with solenoid

Fluid handling – With leakage or drip collecting

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Details

1225042.507, 126388, 137392, 137434, 200 6104, 200 6105, 200 84R, 307118, 340625, 361178, H16K 3300, H01H 2904, H01H 3518

Patent

active

048056626

ABSTRACT:
A ground fault interrupter (GFI) circuit is wired to a main circuit breaker panel. A first output of the ground fault interrupter circuit provides electrical current to a solenoid valve that controls the supply of cold water to a conventional hot water heater. The solenoid valve is held in its open position by 110 V. alternating current and is closed by spring biasing means when the current is cut off. The other output of the GFI circuit provides 110 V. alternating current to a leak detector. A leak detecting system directs leakage to a collector wherein the presence of water in the collector completes the circuit between the hot wire and ground of the second outlet. When the circuit is shorted out to ground by the presence of water the GFI circuit is tripped at the main circuit breaker panel and simultaneously cuts off current to the solenoid valve controlling the flow of water to the heater permitting the spring to bias the valve shut and preventing any water damage due to leakage.

REFERENCES:
patent: 2432367 (1947-12-01), Andresen
patent: 2456698 (1948-12-01), Hall
patent: 3473553 (1969-10-01), Collins
patent: 3770002 (1973-11-01), Brown
patent: 3874403 (1975-04-01), Fischer
patent: 3920031 (1975-11-01), Maxfield
patent: 4246575 (1981-01-01), Purtell et al.
patent: 4305420 (1981-12-01), Nussdorf
patent: 4380243 (1983-04-01), Braley

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