(19)

(11)

EP 1 875 013 A1

(12)

(43) Date of publication: 09.01.2008 Bulletin 2008/02 (21) Application number: 06701699.8 (22) Date of filing: 13.01.2006

(51) International Patent Classification (IPC):  E04F 21/00(2006.01) E01C 5/00(2006.01) (86) International application number: PCT/GB2006/000132 (87) International publication number: WO 2006/075180 (20.07.2006 Gazette 2006/29)

(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: 14.01.2005 GB 0500743 (71) Applicant: TURNER INTELLECTUAL PROPERTY LIMITED Burton-on-Trent, Staffordshire DE14 1SD (GB)	(72) Inventor: SKILLINGS, Simon, James Staffordshire DE14 1PJ (GB) (74) Representative: Powell, Timothy John  Eric Potter Clarkson LLP Park View House 58 The Ropewalk Nottingham NG1 5DD Nottingham NG1 5DD (GB)