CARBURIZED LOW SILICON STEEL ARTICLE AND PROCESS - Patent 0393137

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EP 0 393 137 A1

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(43)	Date of publication:
	24.10.1990 Bulletin 1990/43

(21)	Application number: 89901165.0

(22)	Date of filing: 14.12.1988

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International Patent Classification (IPC):

C21D 1/ 78^{( . )}

C23C 8/ 22^{( . )}

(86)	International application number:
	PCT/US1988/004470

(87)	International publication number:
	WO 1989/005865 (29.06.1989 Gazette 1989/14)

(84)	Designated Contracting States:
	DE FR GB IT SE

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Priority:

21.12.1987 US 19870135775
21.12.1987 WO 1987US03450

(71)	Applicant: CATERPILLAR INC.
	Peoria Illinois 61629-6490 (US)

(72)	Inventors:
	TIPTON, Sheryl, A. East Peoria, IL 61611 (US) KEIL, Gary, D. Elmwood, IL 61529 (US) HOLLOWAY, Gregory, S. Metamora, IL 61548 (US) GROMER, Dave, R. Morton, IL 61550 (US) BILTGEN, Gary, L. Peoria, IL 61614 (US)

(74)	Representative: Wagner, Karl H.
	WAGNER & GEYER Patentanwälte Gewuerzmuehlstrasse 5 D-80538 München D-80538 München (DE)

(54)	CARBURIZED LOW SILICON STEEL ARTICLE AND PROCESS