(19)

(11)

EP 1 960 110 A1

(12)

(43) Date of publication: 27.08.2008 Bulletin 2008/35 (21) Application number: 06817589.2 (22) Date of filing: 06.12.2006

(51) International Patent Classification (IPC):  B02C 15/12(2006.01) (86) International application number: PCT/AU2006/001853 (87) International publication number: WO 2007/065214 (14.06.2007 Gazette 2007/24)

(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: 07.12.2005 AU 2005906879 (71) Applicant: Bradken Resources Pty Limited Mayfield West, New South Wales 2304 (AU)	(72) Inventor: SULZBERGER, James Mayfield West, New South Wales 2304 (AU) (74) Representative: Ribeiro, James Michael et al Withers & Rogers LLP Goldings House 2 Hays Lane London SE1 2HW London SE1 2HW (GB)