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(11)

EP 1 730 355 A1

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(43) Date of publication: 13.12.2006 Bulletin 2006/50 (21) Application number: 05714343.0 (22) Date of filing: 31.03.2005

(51) International Patent Classification (IPC):  E02D 29/02(2006.01) E02D 17/20(2006.01) E02D 5/76(2006.01) (86) International application number: PCT/AU2005/000474 (87) International publication number: WO 2005/095718 (13.10.2005 Gazette 2005/41)

(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 MC NL PL PT RO SE SI SK TR (30) Priority: 01.04.2004 AU 2004901725 05.04.2004 AU 2004901789 15.12.2004 AU 2004907121 23.02.2005 AU 2005900832 (71) Applicant: Modalco Pty. Ltd. Quinns Rocks, WA 6030 (AU)	(72) Inventor: COSTIN, Samuel, Patrick Western Australia 6030 (AU) (74) Representative: Maggs, Michael Norman et al Kilburn & Strode 20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)