Trigger assembly for arc welding gun

Details Trigger assembly for arc welding gun Trigger assembly for arc welding gun

1979-03-30

1981-02-10

Shepperd, John W.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200325, H01H 906

Patent

active

042503663

ABSTRACT:
An improved modular trigger assembly for an arc welding gun includes a trigger housing pivotably mounted to a welding gun. A switch is mounted inside the trigger housing and is actuated by movement of the trigger housing. The trigger housing also includes a slideable locking crescent having a first end near a finger surface of the trigger housing. This locking crescent is so arranged that pressure on the first end surface serves both to depress the trigger and to lock the trigger in the depressed position.

REFERENCES:
patent: 2211603 (1940-08-01), Lang
patent: 2586722 (1952-02-01), Rutherford
patent: 2701287 (1955-02-01), Winter
patent: 2812418 (1957-11-01), Allan et al.
patent: 3469070 (1969-09-01), Bernard et al.
OSU Schutzgas-Schweisspistolen, EMSG literature
Binzel America Ltd. A41K MIG Welding Guns, 1978, 1976, literature and parts catalogue.
Tweco Model No. 1, Catalogue No. MG 100-78, Apr. 1976.
Tweco 400 Ampere, MIG-GUN catalog No. MG 400-76, Dec. 1976.
Tweco, MIG-GUN "Installation and Operating Instructions" for Models No. 4-AN, No. 5, No. 6, Tweco form No. MGM-12R.

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