(19)

(11)

EP 1 187 953 A1

(12)

(43) Date of publication: 20.03.2002 Bulletin 2002/12 (21) Application number: 00901163.6 (22) Date of filing: 10.01.2000

(51) International Patent Classification (IPC)7: E01C 19/05, B07B 1/22 (86) International application number: PCT/FI0000/011 (87) International publication number: WO 0040/803 (13.07.2000 Gazette 2000/28)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 08.01.1999 FI 990021 (71) Applicant: Hakkarainen, Kelevi 44500 Viitasaari (FI)	(72) Inventor: Hakkarainen, Kelevi 44500 Viitasaari (FI) (74) Representative: Helke, Kimmo Kalervo  Kespat Oy,P.O. Box 601 40101 Jyväskylä 40101 Jyväskylä (FI)