(19)

(11)

EP 1 150 786 A1

(12)

(43) Date of publication: 07.11.2001 Bulletin 2001/45 (21) Application number: 99964884.3 (22) Date of filing: 16.12.1999

(51) International Patent Classification (IPC)7: B21C 47/28 (86) International application number: PCT/SE9902/382 (87) International publication number: WO 0037/191 (29.06.2000 Gazette 2000/26)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU (30) Priority: 18.12.1998 SE 9804473 (71) Applicant: Esab AB 402 77 Göteborg (SE)	(72) Inventor: ÖSTGREN, Lars S-442 52 Ytterby (SE) (74) Representative: Lindberg, Klas Valter Bo et al AWAPATENT AB,Södra Hamngatan 37-41,P.O. Box 11394 404 28 Göteborg 404 28 Göteborg (SE)