Electric heating – Metal heating – By arc
Patent
1983-08-24
1986-03-18
Albritton, C. L.
Electric heating
Metal heating
By arc
361 42, B23K 1136
Patent
active
045770905
ABSTRACT:
A primary cable apparatus for a robot welding gun having a cable including a pair of conductors operatively connected to a welding power source, a grounding conductor, a shield wire surrounding the pair of conductors and the grounding conductor and an insulation coating operatively positioned around the shield wire. A first connector is operatively mounted on one end of the cable for connection to the welding power source and includes terminals connected to the conductors. A second connector is provided for detecting a disorder having a terminal operatively connected to the grounding conductor and a terminal connected to the shield wire for detecting damage to the insulation coating of the cable. A disorder detector is operatively connected to the terminals of the second connector and includes a circuit breaker interposed in a welding power circuit which is responsive to an output of the disorder detector.
REFERENCES:
patent: 2605314 (1952-07-01), Schelke
patent: 3602772 (1971-08-01), Hundhausen et al.
patent: 3891894 (1975-06-01), Scarpino
patent: 4403267 (1983-09-01), Verhoff et al.
patent: 4423306 (1983-12-01), Fox
Albritton C. L.
Obara Corporation
Sigda Catherine M.
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