(19)

(11)

EP 2 398 307 A1

(12)

(43) Date of publication: 28.12.2011 Bulletin 2011/52 (21) Application number: 10743447.4 (22) Date of filing: 22.02.2010

(51) International Patent Classification (IPC):  A01C 5/06(2006.01) A01C 7/20(2006.01) (86) International application number: PCT/FI2010/050120 (87) International publication number: WO 2010/094843 (26.08.2010 Gazette 2010/34)

(84) Designated Contracting States: 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: 20.02.2009 FI 20095160 (71) Applicant: Vieskan Metalli Oy 85200 Alavieska (FI)	(72) Inventor: Koutonen, Ari FI-85200 Alavieska (FI)