APPARATUS AND METHOD OF INDUCTION-HARDENING MACHINE COMPONENTS WITH PRECISE POWER OUTPUT CONTROL

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EP 0 542 813 A1

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(43)	Date of publication:
	26.05.1993 Bulletin 1993/21

(21)	Application number: 91914109.0

(22)	Date of filing: 25.07.1991

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International Patent Classification (IPC):

C21D 1/ 10^{( . )}
H05B 6/ 06^{( . )}
H05B 6/ 14^{( . )}

C21D 9/ 32^{( . )}
H05B 6/ 10^{( . )}
H05B 6/ 40^{( . )}

(86)	International application number:
	PCT/US1991/005285

(87)	International publication number:
	WO 1992/003026 (20.02.1992 Gazette 1992/05)

(84)	Designated Contracting States:
	AT BE CH DE ES FR GB IT LI NL SE

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Priority:

06.08.1990 US 19900563398
30.04.1991 US 19910693343

(71)	Applicant: Contour Hardening, Inc.
	Indianapolis, Indiana 46268 (US)

(72)	Inventors:
	STORM, John, M. Danville, IN 46122 (US) GIBBS, Spencer, L. Danville, IN 46122 (US)

(74)	Representative: Everitt, Christopher James Wilders, et al
	F.J. CLEVELAND & COMPANY 40/43 Chancery Lane London WC2A 1JQ London WC2A 1JQ (GB)

(54)	APPARATUS AND METHOD OF INDUCTION-HARDENING MACHINE COMPONENTS WITH PRECISE POWER OUTPUT CONTROL