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(11)

EP 2 440 030 A1

(12)

(43) Date of publication: 18.04.2012 Bulletin 2012/16 (21) Application number: 10786442.3 (22) Date of filing: 28.05.2010

(51) International Patent Classification (IPC):  A01B 61/04(2006.01) A01C 5/06(2006.01) A01B 35/22(2006.01) F16F 1/54(2006.01) (86) International application number: PCT/SE2010/050578 (87) International publication number: WO 2010/144025 (16.12.2010 Gazette 2010/50)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR (30) Priority: 12.06.2009 SE 0950454 (71) Applicant: Väderstad-Verken Aktiebolag 590 21Väderstad (SE)	(72) Inventor: STARK, Crister S-590 21 Väderstad (SE) (74) Representative: Lettström, Richard Wilhelm  RWL Patents AB P.O. Box 138 683 23 Hagfors 683 23 Hagfors (SE)