(19)

(11)

EP 1 817 465 A1

(12)

(43) Date of publication: 15.08.2007 Bulletin 2007/33 (21) Application number: 05784087.8 (22) Date of filing: 19.09.2005

(51) International Patent Classification (IPC):  E02D 29/14(2006.01) (86) International application number: PCT/GB2005/003598 (87) International publication number: WO 2006/048593 (11.05.2006 Gazette 2006/19)

(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: 04.11.2004 GB 0424390 16.11.2004 GB 0425210 (71) Applicant: Auckland, Paul Richard Mansfield Nottinghamshire NG18 2BS (GB)	(72) Inventor: Auckland, Paul Richard Mansfield Nottinghamshire NG18 2BS (GB) (74) Representative: Jackson, Nicholas Andrew et al Franks & Co Limited 15, Jessops Riverside Brightside Lane GB-Sheffield S9 2RX GB-Sheffield S9 2RX (GB)