Dual switch for semi automatic welding gun

Details Dual switch for semi automatic welding gun Dual switch for semi automatic welding gun

1995-12-05

1997-12-16

Shaw, Clifford C.

Electric heating

Metal heating

By arc

200 4317, B23K 9173

Patent

active

056981228

ABSTRACT:
A dual switch for a semi automatic welding gun has a switch lever that pivots between three positions. At the first position, the switch lever is disengaged from a first switch so that the welding gun is "off". In the second position, the switch lever engages the first switch to turn the gun "on". A locking lever retains the switch lever in its second position. Pivoting the switch lever to its third position releases the locking lever to enable the switch lever to return, under a spring bias, to its first position. A second switch is independent of the first switch and is selectively actuated to vary the welding schedule while the gun is either "on" or "off".

REFERENCES:
patent: 2658132 (1953-11-01), Welch
patent: 3283121 (1966-11-01), Bernard et al.
patent: 3428778 (1969-02-01), Blackman et al.
patent: 3469070 (1969-09-01), Bernard et al.
patent: 3689733 (1972-09-01), Matasovic
patent: 3854020 (1974-12-01), Glover et al.
patent: 4250366 (1981-02-01), Erickson et al.
patent: 4608482 (1986-08-01), Cox et al.

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