(19)

(11)

EP 1 977 045 A1

(12)

(43) Date of publication: 08.10.2008 Bulletin 2008/41 (21) Application number: 06831445.9 (22) Date of filing: 22.12.2006

(51) International Patent Classification (IPC):  E01C 9/08(2006.01) B29C 70/86(2006.01) E01C 5/18(2006.01) (86) International application number: PCT/GB2006/004884 (87) International publication number: WO 2007/072034 (28.06.2007 Gazette 2007/26)

(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: 23.12.2005 GB 0526339 (71) Applicant: Woodpath Ventures Ltd. The Fosse Cotgrave Nottinghamshire NG12 3HG (GB)	(72) Inventors: MARSH, Anthony, Richard Nottingham NG2 7DF (GB) HARPER, Gordon Edmonton Alberta T6W 1H9 (CA) STEADMAN, Gary, E. Sherwood Park Alberta T8H 2P5 (CA) LUKASIK, Mark Edmonton Alberta T6R 1M8 (CA) (74) Representative: Johnstone, Helen Margaret et al Potter Clarkson LLP Park View House 58 The Ropewalk Nottingham NG1 5DD Nottingham NG1 5DD (GB)