(19)

(11)

EP 1 859 111 A1

(12)

(43) Date of publication: 28.11.2007 Bulletin 2007/48 (21) Application number: 06704877.7 (22) Date of filing: 16.02.2006

(51) International Patent Classification (IPC):  E04H 4/16(2006.01) (86) International application number: PCT/AU2006/000200 (87) International publication number: WO 2006/086840 (24.08.2006 Gazette 2006/34)

(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: 16.02.2005 AU 2005900729 30.11.2005 AU 2005239660 (71) Applicant: Halle, Roy Michael Auburn, NSW 2144 (AU)	(72) Inventor: VAN ROOYEN, Basil St Ives, NSW 2075 (AU) (74) Representative: Van Gorkom, Lucas Marijn  Exter Polak & Charlouis B.V. P.O. Box 3241 2280 GE Rijswijk 2280 GE Rijswijk (NL)