APPARATUS AND METHOD FOR FORMING A PIPE WITH INCREASED WALL-THICKNESS AT ITS ENDS - Patent 1121209

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EP 1 121 209 A1

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(43)	Date of publication:
	08.08.2001 Bulletin 2001/32

(21)	Application number: 99954830.8

(22)	Date of filing: 08.10.1999

(51)	International Patent Classification (IPC)⁷: B21C 23/08, B21C 25/08, B21C 37/16

(86)	International application number:
	PCT/US9923/618

(87)	International publication number:
	WO 0021/696 (20.04.2000 Gazette 2000/16)

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

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Priority:

09.10.1998 US 103798 P

(71)	Applicant: WYMAN-GORDON COMPANY
	North Grafton, MA 01536-8001 (US)

(72)	Inventor:
	SAHLEM, Donald, P. Akron, NY 14001 (US)

(74)	Representative: Godwin, Edgar James
	MARKS & CLERK,57-60 Lincoln's Inn Fields London WC2A 3LS London WC2A 3LS (GB)

(54)	APPARATUS AND METHOD FOR FORMING A PIPE WITH INCREASED WALL-THICKNESS AT ITS ENDS