Switch mechanism for operating a plasma arc torch, other tools o

Details Switch mechanism for operating a plasma arc torch, other tools o Switch mechanism for operating a plasma arc torch, other tools o

1994-12-20

1997-01-28

Paschall, Mark H.

Electric heating

Metal heating

By arc

219 8621, 21912159, 21912139, 222473, 42 7006, B23K 1000

Patent

active

055974970

ABSTRACT:
A switch mechanism with a safety member for operating a tool or a weapon which reduces the probability of inadvertent operation. The switch mechanism comprises a trigger and a safety member disposed adjacent to the trigger for preventing the trigger from contacting an actuation switch. The safety member is shaped such that when it is positioned in a first position, it prevents the trigger from contacting the switch. In addition, the safety member is shaped such that when the safety member is positioned in a second position, it allows the trigger to contact the actuation switch.

REFERENCES:
patent: 3827171 (1974-08-01), Smith
patent: 3971492 (1976-07-01), Lockwood
patent: 4245759 (1981-01-01), Baker et al.
patent: 4681998 (1987-07-01), Kon
patent: 5039837 (1991-08-01), Nourbakhsh et al.
patent: 5208441 (1993-05-01), Broberg
patent: 5388362 (1995-02-01), Melcher

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