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(11)

EP 1 207 972 A1

(12)

(43) Date of publication: 29.05.2002 Bulletin 2002/22 (21) Application number: 00962042.8 (22) Date of filing: 02.08.2000

(51) International Patent Classification (IPC)7: B21B 1/10, B21D 15/04, B21D 15/00 (86) International application number: PCT/US0040/547 (87) International publication number: WO 0108/827 (08.02.2001 Gazette 2001/06)

(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 LV MK RO SI (30) Priority: 03.08.1999 US 146848 P (71) Applicant: Anvil International, Inc. Portsmouth, NH 03801 (US)	(72) Inventor: WILLIAMS, James, O. Marlborough, MA 01752 (US) (74) Representative: Barske, Heiko, Dr. rer. nat. et al Blumbach, Kramer & PartnerPatentanwälteRadeckestrasse 43 81245 München 81245 München (DE)