Electric heating – Metal heating – By arc
Patent
1986-04-17
1987-10-20
Paschall, M. H.
Electric heating
Metal heating
By arc
219121PM, 219121PP, 219 75, 219121PT, B23K 900
Patent
active
047015900
ABSTRACT:
A plasma-arc torch is provided having a spring loaded ejector mechanism for expelling the electrode and thereby breaking off electrical contact so as to prevent operation of the torch when necessary parts are not in place.
REFERENCES:
patent: 3803380 (1974-04-01), Ragaller
patent: 3813510 (1974-05-01), Hatch
patent: 4580032 (1986-04-01), Carkhuff
patent: 4585921 (1986-04-01), Wilkins et al.
Paschall M. H.
Thermal Dynamics Corporation
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