Automatic gas detector for arc welder

Details Automatic gas detector for arc welder Automatic gas detector for arc welder

1986-05-15

1988-08-30

Shaw, Clifford C.

Electric heating

Metal heating

By arc

219136, B23K 910

Patent

active

047679131

ABSTRACT:
An automatic gas detector is provided for a welding machine. The automatic gas detector is safe, efficient and effective and particularly useful in oil refineries and petrochemical plants. The automatic gas detector includes a gas monitor for detecting combustible gases, a circuit interrupter connected in a power supply circuit between a power source and the welding machine, and a circuit connected to the gas monitor and the circuit interrupter to de-energize the power source when the gas monitor senses a dangerous level of combustible gas.

REFERENCES:
patent: 2881274 (1959-04-01), Ray
patent: 3471264 (1969-10-01), Crozier
patent: 3609732 (1971-09-01), Kasahara et al.
patent: 4100390 (1978-07-01), Jackson
patent: 4129030 (1978-12-01), Dolan
patent: 4352087 (1982-09-01), Wittmaier
patent: 4358949 (1982-11-01), MacFarland et al.

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