IP Library › Granted Patent US 4,748,312
Granted Patent Utility
US 4,748,312 · App. 06/850,504

Plasma-arc torch with gas cooled blow-out electrode

Inventors: Bruce O. Hatch, Richard A. Spaulding
Patented Case View Patent ↗
Granted: May 31, 1988 Filed: Apr 10, 1986
Inventors
Bruce O. Hatch
Richard A. Spaulding
Assignee (at issue)
Thermal Dynamics Corporation

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Quick Facts
Patent No.
US 4,748,312
App. No.
06/850,504
Filed
1986-04-10
Granted
1988-05-31
Kind
A