(19)

(11)

EP 1 164 828 A1

(12)

(43) Date of publication: 02.01.2002 Bulletin 2002/01 (21) Application number: 00914386.8 (22) Date of filing: 15.03.2000

(51) International Patent Classification (IPC)7: A01F 15/07 (86) International application number: PCT/NO0000/088 (87) International publication number: WO 0059/290 (12.10.2000 Gazette 2000/41)

(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: 19.03.1999 NO 991364 (71) Applicant: Orkel AS 7321 Fannrem (NO)	(72) Inventor: BACHMANN, Walter CH-8311 Brütten (CH) (74) Representative: Arwidi, Bengt  Ahlpatent AB Gjuterigatan 9 553 18 Jönköping 553 18 Jönköping (SE)