WELDING TORCH COOLED BY LIQUID-GAS TRANSITION

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EP 0 020 362 A1

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(43)	Date of publication:
	07.01.1981 Bulletin 1981/01

(21)	Application number: 79900942.0

(22)	Date of filing: 07.12.1978

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International Patent Classification (IPC):

B23K 9/ 26^{( . )}

B23K 9/ 28^{( . )}

(86)	International application number:
	PCT/US1978/000193

(87)	International publication number:
	WO 1980/001147 (12.06.1980 Gazette 1980/13)

(84)	Designated Contracting States:
	DE FR GB

(71)	Applicant: CATERPILLAR TRACTOR CO.
	Peoria, Illinois 61629 (US)

(72)	Inventor:
	FRANTZREB, John G., Sr. Peoria, IL 61614 (US)

(74)	Representative: Wagner, Karl H. (DE)
	Wagner & Geyer Patentanwälte Gewürzmühlstrasse 5 D-80538 München D-80538 München (DE)

(54)	WELDING TORCH COOLED BY LIQUID-GAS TRANSITION