(19)

(11)

EP 2 029 835 A1

(12)

(43) Date of publication: 04.03.2009 Bulletin 2009/10 (21) Application number: 07719102.1 (22) Date of filing: 20.06.2007

(51) International Patent Classification (IPC):  E04G 27/00(2006.01) E04F 11/00(2006.01) B64F 1/315(2006.01) (86) International application number: PCT/AU2007/000863 (87) International publication number: WO 2007/147210 (27.12.2007 Gazette 2007/52)

(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 MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 20.06.2006 AU 2006903316 P (71) Applicant: PRESTON, John Clement Silverwater, NSW 2128 (AU)	(72) Inventor: PRESTON, John Clement Silverwater, NSW 2128 (AU) (74) Representative: Viering, Jentschura & Partner  Postfach 22 14 43 80504 München 80504 München (DE)