(19)

(11)

EP 1 024 889 A1

(12)

(43) Date of publication: 09.08.2000 Bulletin 2000/32 (21) Application number: 98909881.9 (22) Date of filing: 06.03.1998

(51) International Patent Classification (IPC)7: B01F 7/04, B01F 3/18 (86) International application number: PCT/NO9800/075 (87) International publication number: WO 9839/087 (11.09.1998 Gazette 1998/36)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI NL PT SE Designated Extension States: LT LV RO SI (30) Priority: 06.03.1997 NO 971044 (71) Applicant: Nordahl, Geir 3200 Sandefjord (NO)	(72) Inventor: Nordahl, Geir 3200 Sandefjord (NO) (74) Representative: Lindberg, Klas Valter Bo  AWAPATENT AB,Södra Hamngatan 37-41,P.O. Box 11394 404 28 Göteborg 404 28 Göteborg (SE)