(19)

(11)

EP 2 234 500 A1

(12)

(43) Date of publication: 06.10.2010 Bulletin 2010/40 (21) Application number: 08869363.5 (22) Date of filing: 22.12.2008

(51) International Patent Classification (IPC):  A22C 17/10(2006.01) G01V 15/00(2006.01) (86) International application number: PCT/SE2008/051546 (87) International publication number: WO 2009/088347 (16.07.2009 Gazette 2009/29)

(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 MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 08.01.2008 SE 0800040 (71) Applicant: TracTechnology AB 167 51 Bromma (SE)	(72) Inventors: NORDSTRÖM, Mats S-167 67 Bromma (SE) HOLMER, Björn S-162 45 Vällingby (SE) (74) Representative: Nikolopoulou, Sofia  Albihns.Zacco Valhallavägen 117 Box 5581 114 85 Stockholm 114 85 Stockholm (SE)