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EP 1 668 191 A1

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(43) Date of publication: 14.06.2006 Bulletin 2006/24 (21) Application number: 04761284.1 (22) Date of filing: 15.09.2004

(51) International Patent Classification (IPC):  E02D 5/60(1968.09) E02D 5/64(1968.09) (86) International application number: PCT/AU2004/001249 (87) International publication number: WO 2005/026450 (24.03.2005 Gazette 2005/12)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 15.09.2003 AU 2003905006 (71) Applicant: THE UNIVERSITY OF SOUTHERN QUEENSLAND Toowoomba, QLD 4350 (AU)

(72) Inventors: VAN ERP, Gerardus, Maria Toowoomba, Queensland 4350 (AU) HELDT, Timothy, John Laidley, Queensland 4341 (AU) CATTELL, Craig, Leslie Toowoomba, Queensland 4350 (AU) BROWNE, Darren, James Toowoomba, Queensland 4350 (AU) MARSH, Roy Toowoomba, Queensland 4350 (AU) (74) Representative: Behrmann, Niels  Hiebsch Behrmann Nüsse Patentanwälte Heinrich-Weber-Platz 1 78224 Singen 78224 Singen (DE)