Plasma arc metal cutting apparatus with actuation spring

Details Plasma arc metal cutting apparatus with actuation spring Plasma arc metal cutting apparatus with actuation spring

1989-04-24

1990-01-23

Paschall, M. H.

Electric heating

Metal heating

By arc

21912157, 21912139, 21912148, 21912401, B23K 906

Patent

active

048960160

ABSTRACT:
In connection with a plasma arc metal cutting apparatus, an electrode having vertical movement within a nozzle, said nozzle having a gas supply passing therethrough, an over-center spring mechanism holding the electrode in one operating position, a switch in one position energizing the electrode in engagement with the nozzle and said switch in a second position actuating the spring mechanism to snap the electrode to a position away from engagement with the nozzle and thus draw an arc between the electrode and the nozzle, the arc comprising a plasma flame to cut materials.

REFERENCES:
patent: 2561405 (1951-07-01), O'Brien et al.
patent: 3264884 (1966-09-01), Brooke
patent: 3366772 (1968-01-01), Wickham et al.
patent: 3803380 (1974-04-01), Ragalle
patent: 3813510 (1974-05-01), Hatch
patent: 3814557 (1985-03-01), Dallavalle et al.
patent: 4590354 (1986-05-01), Mashic et al.
patent: 4791268 (1988-12-01), Sanders et al.

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