Automatic valve closer

Details Automatic valve closer Automatic valve closer

1983-07-05

1984-12-18

Chambers, A. Michael

Fluid handling

Ambient condition change responsive

137312, 251134, 307118, 340605, 361178, H01H 3500, G08B 2100

Patent

active

044885679

ABSTRACT:
Valve closure means having a low rpm motor with a shaft coupled to the stem of a shutoff valve located in the supply line of a water heater or like device; said motor having support means attaching to the supply line is energized to rotate said shutoff valve to a closed position when the tank of said water heater or like device ruptures, thereby terminating flow in the supply line.

REFERENCES:
patent: 1943854 (1934-01-01), Beckwith
patent: 2325725 (1943-08-01), Wood
patent: 3387748 (1968-06-01), Brenchley
patent: 3770002 (1973-11-01), Brown
patent: 3796925 (1974-03-01), Breeding
patent: 3874403 (1975-04-01), Fischer
patent: 4305420 (1981-12-01), Nussdorf
patent: 4324268 (1982-04-01), Jacobson

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