(19)

(11)

EP 2 094 413 A1

(12)

(43) Date of publication: 02.09.2009 Bulletin 2009/36 (21) Application number: 07819573.2 (22) Date of filing: 05.11.2007

(51) International Patent Classification (IPC):  B21D 45/00(2006.01) (86) International application number: PCT/EP2007/009550 (87) International publication number: WO 2008/055631 (15.05.2008 Gazette 2008/20)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (30) Priority: 06.11.2006 SE 0602363 06.11.2006 US 856837 P (71) Applicant: Strömsholmen AB 573 23 Tranas (SE)	(72) Inventors: EKMAN, Fredrik 590 48 Vikingstad (SE) STOLTZ, Patrik 573 38 Tranås (SE) (74) Representative: Bokinge, Ole  Awapatent AB Junkersgatan 1 582 35 Linköping 582 35 Linköping (SE)