(19)

(11)

EP 1 711 683 A1

(12)

(43) Date of publication: 18.10.2006 Bulletin 2006/42 (21) Application number: 05702093.5 (22) Date of filing: 02.02.2005

(51) International Patent Classification (IPC):  E21D 9/08(2006.01) (86) International application number: PCT/GB2005/000353 (87) International publication number: WO 2005/075792 (18.08.2005 Gazette 2005/33)

(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 MC NL PL PT RO SE SI SK TR (30) Priority: 04.02.2004 GB 0402484 (71) Applicant: Finean, Andrew Michael 37 Brydale House Rotherhithe New Road London SE16 2PT (GB)	(72) Inventor: Finean, Andrew Michael 37 Brydale House Rotherhithe New Road London SE16 2PT (GB) (74) Representative: Jones, Graham Henry  Graham Jones & Company 77 Beaconsfield Road Blackheath, London SE3 7LG Blackheath, London SE3 7LG (GB)