(19)

(11)

EP 0 949 859 A1

(12)

(43) Date of publication: 20.10.1999 Bulletin 1999/42 (21) Application number: 98949099.0 (22) Date of filing: 21.10.1998

(51) International Patent Classification (IPC):  A01B 19/ 02( . ) A01C 7/ 20( . ) A01B 49/ 06( . ) (86) International application number: PCT/GB1998/003127 (87) International publication number: WO 1999/022578 (14.05.1999 Gazette 1999/19)

(84) Designated Contracting States: AT DE DK FI FR GB SE (30) Priority: 05.11.1997 GB 19970023293 (71) Applicant: KVERNELAND KLEPP AS N-4344 Kvernaland (NO)	(72) Inventor: LANGBAKK, Hans, Petter N-4300 Sandnes (NO) (74) Representative: Orr, William McLean  URQUHART-DYKES & LORD 5th Floor, Tower House Merrion Way Leeds West Yorkshire, LS2 8PA Leeds West Yorkshire, LS2 8PA (GB)