(19)

(11)

EP 1 274 523 A2

(12)

(88) Date of publication A3: 11.07.2002 (43) Date of publication: 15.01.2003 Bulletin 2003/03 (21) Application number: 01905537.5 (22) Date of filing: 13.02.2001

(51) International Patent Classification (IPC)7: B21D 26/02 (86) International application number: PCT/CA0100/164 (87) International publication number: WO 0106/2410 (30.08.2001 Gazette 2001/35)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 22.02.2000 US 183783 P (71) Applicant: Cosma International Inc. Aurora,Ontario L4G 7K1 (CA)	(72) Inventors: JANSSEN, Andreas, G. Troy, MI 48098 (US) HORTON, Frank, A. Rochester Hills, MI 48309 (US) (74) Representative: Hössle, Markus, Dipl.-Phys.  Hössle & KudlekPostfach 10 23 38 70019 Stuttgart 70019 Stuttgart (DE)