METHOD AND APPARATUS FOR PROVIDING A LAYER OF COMPRESSIVE RESIDUAL STRESS - Patent 1485510

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EP 1 485 510 A1

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(43)	Date of publication:
	15.12.2004 Bulletin 2004/51

(21)	Application number: 03716639.4

(22)	Date of filing: 14.03.2003

(51)	International Patent Classification (IPC)⁷: C21D 7/06

(86)	International application number:
	PCT/US2003/008130

(87)	International publication number:
	WO 2003/080877 (02.10.2003 Gazette 2003/40)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
	Designated Extension States:
	AL LT LV MK

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Priority:

18.03.2002 US 346489 P
30.04.2002 US 376757 P

(71)	Applicant: Surface Technology Holdings, Ltd.
	Cincinnati, Ohio 45246 (US)

(72)	Inventors:
	PREVEY, Paul, S., III Cincinnati, OH 45246 (US) CAMMETT, John, T. Jacksonville, NC 28546 (US)

(74)	Representative: James, Anthony Christopher W.P. et al
	Carpmaels & Ransford43-45 Bloomsbury Square London WC1A 2RA London WC1A 2RA (GB)

(54)	METHOD AND APPARATUS FOR PROVIDING A LAYER OF COMPRESSIVE RESIDUAL STRESS