(19)

(11)

EP 1 660 739 A1

(12)

(43) Date of publication: 31.05.2006 Bulletin 2006/22 (21) Application number: 04737613.2 (22) Date of filing: 23.07.2004

(51) International Patent Classification (IPC):  E04H 12/00(1968.09) E01F 9/013(1995.01) (86) International application number: PCT/AU2004/000994 (87) International publication number: WO 2005/010300 (03.02.2005 Gazette 2005/05)

(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: 23.07.2003 AU 2003903807 (71) Applicant: Cooper, Paul Alan Park Ridge South, QLD 4125 (AU)	(72) Inventors: COOPER, Paul, Alan Park Ridge South, QLD 4125 (AU) COOPER, Antony, James Park Ridge South, QLD 4125 (AU) (74) Representative: Köhler, Walter et al Louis,&Pöhlau,&Lohrentz Patentanwälte P.O. Box 30 55 90014 Nürnberg 90014 Nürnberg (DE)