(19)

(11)

EP 1 812 651 A1

(12)

(43) Date of publication: 01.08.2007 Bulletin 2007/31 (21) Application number: 05801465.5 (22) Date of filing: 10.11.2005

(51) International Patent Classification (IPC):  E01H 5/06(2006.01) (86) International application number: PCT/SE2005/001686 (87) International publication number: WO 2006/052196 (18.05.2006 Gazette 2006/20)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 10.11.2004 SE 0402727 (71) Applicant: Metso Minerals (Wear Protection) AB 231 21 Trelleborg (SE)	(72) Inventors: GRÖNVALL, Lars S-231 55 Trelleborg (SE) AHLBERG, Peter S-231 32 Trelleborg (SE) (74) Representative: Milanov, Nina Vendela Maria  Awapatent AB P.O. Box 5117 200 71 Malmö 200 71 Malmö (SE)