(19)

(11)

EP 1 015 685 A1

(12)

(43) Date of publication: 05.07.2000 Bulletin 2000/27 (21) Application number: 98900550.9 (22) Date of filing: 07.01.1998

(51) International Patent Classification (IPC)7: D21F 1/08 (86) International application number: PCT/FI9800/015 (87) International publication number: WO 9830/751 (16.07.1998 Gazette 1998/28)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 07.01.1997 FI 970065 (71) Applicant: ECOPUMP OY 48100 Kotka (FI)	(72) Inventor: LOIPPO, Kimmo FIN-41210 Jokihaara (FI) (74) Representative: Vastavuo, Juhani Veli et al Oy Heinänen Ab,Patent Agency,Annankatu 31-33 C 00100 Helsinki 00100 Helsinki (FI)