METHOD OF MAKING A RING - Patent 2307156

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EP 2 307 156 A1

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(43)	Date of publication:
	13.04.2011 Bulletin 2011/15

(21)	Application number: 09758660.6

(22)	Date of filing: 15.05.2009

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International Patent Classification (IPC):

B21K 1/76^(2006.01)

B21D 53/16^(2006.01)

(86)	International application number:
	PCT/US2009/003059

(87)	International publication number:
	WO 2009/148496 (10.12.2009 Gazette 2009/50)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA RS

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Priority:

06.06.2008 US 157013

(71)	Applicant: The Gates Corporation
	Denver, CO 80202 (US)

(72)	Inventors:
	HODJAT, Yahya Oxford MI 48371 (US) BHALLA, Anil London Ontario N6E 3K3 (CA) RICHARDS, Phil London Ontario (CA)

(74)	Representative: Tunstall, Christopher Stephen
	Carpmaels & Ransford One Southampton Row London WC1B 5HA London WC1B 5HA (GB)

(54)	METHOD OF MAKING A RING