(19)

(11)

EP 1 285 194 A1

(12)

(43) Date of publication: 26.02.2003 Bulletin 2003/09 (21) Application number: 01928261.5 (22) Date of filing: 26.04.2001

(51) International Patent Classification (IPC)7: F16L 59/14 (86) International application number: PCT/SE0100/889 (87) International publication number: WO 0109/2776 (06.12.2001 Gazette 2001/49)

(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: 29.05.2000 SE 0002006 (71) Applicant: Powerpipe Systems AB 425 02 Hsings Kärra (SE)	(72) Inventors: JOHANSSON, Göran S-426 72 V Frölunda (SE) LJUNGGREN, Lars S-442 41 Kungälv (SE) (74) Representative: Franzén, Lars Hjalmar  AWAPATENT ABP.O. Box 11394 404 28 Göteborg 404 28 Göteborg (SE)