METHOD AND APPARATUS FOR GRINDING PISTON RINGS - Patent 0020502

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EP 0 020 502 A1

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

(21)	Application number: 79901360.0

(22)	Date of filing: 07.09.1979

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International Patent Classification (IPC):

B24B 11/ 00^{( . )}
B24B 37/ 00^{( . )}

B24B 19/ 11^{( . )}

(86)	International application number:
	PCT/US1979/000716

(87)	International publication number:
	WO 1980/000671 (17.04.1980 Gazette 1980/08)

(84)	Designated Contracting States:
	DE FR GB SE

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Priority:

29.09.1978 US 19780947203

(71)	Applicant: DANA CORPORATION
	Toledo, OH 43615 (US)

(72)	Inventor:
	SHARPE, Robert L. Richmond, IN 47374 (US)

(74)	Representative: Cheyne, John Robert Alexander Mackenzie, et al
	HASELTINE LAKE & CO. 28 Southampton Buildings Chancery Lane London WC2A 1AT London WC2A 1AT (GB)

(54)	METHOD AND APPARATUS FOR GRINDING PISTON RINGS