(19)

(11)

EP 1 861 548 A2

(12)

(88) Date of publication A3: 12.10.2006 (43) Date of publication: 05.12.2007 Bulletin 2007/49 (21) Application number: 06709790.7 (22) Date of filing: 17.02.2006

(51) International Patent Classification (IPC):  E01F 15/04(2006.01) (86) International application number: PCT/GB2006/000553 (87) International publication number: WO 2006/087560 (24.08.2006 Gazette 2006/34)

(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: 17.02.2005 GB 0503269 (71) Applicants: Gerrard, Robert Foleshill Coventry CV6 5NN (GB) Gerrard, Marcus Foleshill Coventry CV6 5NN (GB)	(72) Inventors: Gerrard, Robert Foleshill Coventry CV6 5NN (GB) Gerrard, Marcus Foleshill Coventry CV6 5NN (GB) (74) Representative: Hallam, Arnold Vincent  Marks & Clerk 144 New Walk Leicester LE1 7JA Leicester LE1 7JA (GB)