(19)

(11)

EP 1 627 111 A2

(12)

(88) Date of publication A3: 20.01.2005 (43) Date of publication: 22.02.2006 Bulletin 2006/08 (21) Application number: 04733376.0 (22) Date of filing: 17.05.2004

(51) International Patent Classification (IPC):  E01F 13/06(1995.01) (86) International application number: PCT/GB2004/002112 (87) International publication number: WO 2004/101893 (25.11.2004 Gazette 2004/48)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 17.05.2003 GB 0311385 (71) Applicant: HENSHELL, Richard David Nottingham NG8 6PE (GB)	(72) Inventor: HENSHELL, Richard David Nottingham NG8 6PE (GB) (74) Representative: Jones, Stephen Anthony et al AdamsonJones BioCity Nottingham Pennyfoot Street Nottingham NG1 1GF Nottingham NG1 1GF (GB)