(19)

(11)

EP 2 262 951 A1

(12)

(43) Date of publication: 22.12.2010 Bulletin 2010/51 (21) Application number: 09718411.3 (22) Date of filing: 27.02.2009

(51) International Patent Classification (IPC):  E01C 11/24(2006.01) E01F 11/00(2006.01) E01F 9/06(2006.01) E01F 9/047(2006.01) E01C 9/04(2006.01) (86) International application number: PCT/AU2009/000247 (87) International publication number: WO 2009/108998 (11.09.2009 Gazette 2009/37)

(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 TR Designated Extension States: AL BA RS (30) Priority: 05.03.2008 AU 2008901075 (71) Applicant: Austact Pty Ltd Macksville, NSW 2447 (AU)	(72) Inventors: HARWARD, Brian Kirrawee New South Wales 2232 (AU) PARKER, Donovan Kirrawee New South Wales 2232 (AU) ROZENBOOM, Phillip Macksville New South Wales 2447 (AU) (74) Representative: Fleck, Hermann-Josef  Klingengasse 2 71665 Vaihingen/Enz 71665 Vaihingen/Enz (DE)