METHOD OF MAKING AND USING A CERAMIC SHELL MOLD

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EP 0 020 373 A1

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

(21)	Application number: 79900983.0

(22)	Date of filing: 04.12.1978

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International Patent Classification (IPC):

B22C 1/ 04^{( . )}
B22C 3/ 00^{( . )}
B22C 9/ 04^{( . )}

B22C 1/ 16^{( . )}
B22C 9/ 00^{( . )}
C04B 35/ 00^{( . )}

(86)	International application number:
	PCT/US1978/000187

(87)	International publication number:
	WO 1980/001146 (12.06.1980 Gazette 1980/13)

(84)	Designated Contracting States:
	DE FR GB

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

(72)	Inventor:
	OSTROWSKI, Richard C. Dunlap, IL 61525 (US)

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

(54)	METHOD OF MAKING AND USING A CERAMIC SHELL MOLD