Electric heating – Metal heating – By arc
Patent
1987-10-23
1988-09-06
Paschall, M. H.
Electric heating
Metal heating
By arc
219 75, 21912148, 21912153, 21912136, B23K 900
Patent
active
047695242
ABSTRACT:
Disclosed herein is an electrode which may be used in plasma cutting torches which has a superior service life over similar electrodes found in the prior art, due to a design which improves cooling of the electrode, and which allows advancement and resurfacing of the electrode insert.
REFERENCES:
patent: 3690567 (1972-09-01), Borneman
patent: 3740522 (1973-06-01), Muehlberger
patent: 3894573 (1975-07-01), Paton et al.
patent: 3930139 (1975-12-01), Bykhovsky et al.
Killough B. Craig
Paschall M. H.
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