CONTROL FOR DIRECT-CURRENT MOTOR WITH SEPARATELY EXCITED FIELD - Patent 0022774

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EP 0 022 774 A1

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(43)	Date of publication:
	28.01.1981 Bulletin 1981/04

(21)	Application number: 79901037.0

(22)	Date of filing: 15.01.1979

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International Patent Classification (IPC):

F28F 9/ 14^{( . )}
F28F 7/ 00^{( . )}
H02H 7/ 12^{( . )}
H02P 7/ 28^{( . )}

F28D 1/ 04^{( . )}
F28F 9/ 06^{( . )}
H02P 3/ 08^{( . )}

(86)	International application number:
	PCT/US1979/000017

(87)	International publication number:
	WO 1980/001526 (24.07.1980 Gazette 1980/17)

(84)	Designated Contracting States:
	DE FR GB

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

(72)	Inventors:
	URBANC, David J. Peoria, IL 61629 (US) HUXTABLE, James T. Peoria, IL 61629 (US) STAFFORD, Darrell E. Peoria, IL 61614 (US) NIEUKIRK, Robert L. Washington, IL 61571 (US)

(74)	Representative: Brunner, Michael John, et al
	GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)

(54)	CONTROL FOR DIRECT-CURRENT MOTOR WITH SEPARATELY EXCITED FIELD