Gas valve with pilot safety apparatus

Details Gas valve with pilot safety apparatus Gas valve with pilot safety apparatus

1975-02-13

1976-08-10

Schwadron, Martin P.

Fluid handling

Combustion failure responsive fuel safety cut-off for burners

Thermo-electric

431 52, F23N 510

Patent

active

039735761

ABSTRACT:
A gas valve has a single operating knob for providing the operation of a pilot valve and the resetting operation of a thermocouple controlled safety apparatus with a "supersafe" operation. Specifically, the gas valve has a main operating shaft adapted for both axial and rotary movement by a control knob. A tilting latch is attached to the shaft to provide for operation of a pilot valve and a main safety valve when a thermocouple safety mechanism is energized both for a safety valve resetting operation and to provide a "supersafe" operation.

REFERENCES:
patent: 2258811 (1941-10-01), Ray
patent: 2988098 (1961-06-01), Thomas
patent: 3877475 (1975-04-01), Dietiker

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