Method and apparatus for supplying electric power to resistance

Details Method and apparatus for supplying electric power to resistance Method and apparatus for supplying electric power to resistance

1989-06-20

1991-11-05

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

B23K 1100

Patent

active

050632787

ABSTRACT:
A welding electric current is suppled to a tiltable resistance welding gun having a pair of electrodes which grip a workpiece while effecting resistance welding thereon. A power receiver terminal on the resistance welding gun and a power supply unit are connected to each other when the electrodes grip the workpiece therebetween, and the welding current is supplied from the power supply unit to the power receiver terminal. When the electrodes are separated from the workpiece, the power receiver terminal and the power supply unit are disconnected from each other.

REFERENCES:
patent: 2254914 (1941-09-01), Rugg
patent: 2286980 (1942-06-01), Schanz
patent: 2481844 (1949-09-01), Johnson
patent: 3925635 (1975-12-01), Schneider
patent: 4531041 (1985-07-01), Larsson
patent: 4551903 (1985-11-01), Bisiach
patent: 4806103 (1989-02-01), Kniese et al.

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