(19)

(11)

EP 1 766 140 A1

(12)

(43) Date of publication: 28.03.2007 Bulletin 2007/13 (21) Application number: 05742216.4 (22) Date of filing: 19.05.2005

(51) International Patent Classification (IPC):  E01C 11/12(2006.01) E01C 11/00(2006.01) E01C 11/10(2006.01) (86) International application number: PCT/AU2005/000717 (87) International publication number: WO 2005/111308 (24.11.2005 Gazette 2005/47)

(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 MC NL PL PT RO SE SI SK TR (30) Priority: 19.05.2004 AU 2004902665 (71) Applicant: Tripstop Pty Ltd Mitcham VIC 3132 (AU)	(72) Inventors: MCLEAN, Peter, Charles Mitcham, Victoria 3132 (AU) MCCLELLAND, Christopher, Raymond Pearcedale, Victoria 3912 (AU) (74) Representative: Kraenzmer, Martin  Awapatent AB, Box 11394 404 28 Göteborg 404 28 Göteborg (SE)