(19)

(11)

EP 1 297 277 A1

(12)

(43) Date of publication: 02.04.2003 Bulletin 2003/14 (21) Application number: 01945356.2 (22) Date of filing: 11.06.2001

(51) International Patent Classification (IPC)7: F16L 41/18, F16L 27/04 // (E02D29/12, E03F5:02) (86) International application number: PCT/FI0100/550 (87) International publication number: WO 0109/6777 (20.12.2001 Gazette 2001/51)

(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: 12.06.2000 FI 20001398 (71) Applicant: Uponor Innovation AB 513 81 Fristad (SE)	(72) Inventor: JÄPPINEN, Tero FIN-16300 Orimattila (FI) (74) Representative: Huhtanen, Ossi Jaakko  Kolster Oy AB,Iso Roobertinkatu 23,P.O. Box 148 00121 Helsinki 00121 Helsinki (FI)