(19)

(11)

EP 1 190 144 A1

(12)

(43) Date of publication: 27.03.2002 Bulletin 2002/13 (21) Application number: 00929583.3 (22) Date of filing: 26.05.2000

(51) International Patent Classification (IPC)7: E02D 3/026 (86) International application number: PCT/FI0000/472 (87) International publication number: WO 0073/594 (07.12.2000 Gazette 2000/49)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB LI Designated Extension States: AL LT LV MK RO SI (30) Priority: 28.05.1999 FI 990244 U (71) Applicant: Oy Tanacorp Ltd. 40801 Vaajakoski (FI)	(72) Inventor: HEINÄSENAHO, Hannu FIN-40520 Jyväskylä (FI) (74) Representative: Helke, Kimmo Kalervo et al Kespat Oy,P.O. Box 601 40101 Jyväskylä 40101 Jyväskylä (FI)