(19)

(11)

EP 1 948 867 A2

(12)

(88) Date of publication A3: 05.07.2007 (43) Date of publication: 30.07.2008 Bulletin 2008/31 (21) Application number: 06790894.7 (22) Date of filing: 25.10.2006

(51) International Patent Classification (IPC):  E01C 19/26(2006.01) E01C 19/48(2006.01) E01C 19/00(2006.01) (86) International application number: PCT/CA2006/001755 (87) International publication number: WO 2007/051289 (10.05.2007 Gazette 2007/19)

(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: 31.10.2005 US 261465 14.09.2006 US 521389 (71) Applicant: James, Edwin Harry Duncan, BC C9L 5Z5 (CA)	(72) Inventor: James, Edwin Harry Duncan, BC C9L 5Z5 (CA) (74) Representative: Letzelter, Felix Phillip et al Meissner, Bolte & Partner GbR Postfach 86 03 29 D-81630 München D-81630 München (DE)