(19)

(11)

EP 1 740 787 A1

(12)

(43) Date of publication: 10.01.2007 Bulletin 2007/02 (21) Application number: 05731664.8 (22) Date of filing: 24.03.2005

(51) International Patent Classification (IPC):  E04C 2/38(2006.01) (86) International application number: PCT/GB2005/001191 (87) International publication number: WO 2005/093185 (06.10.2005 Gazette 2005/40)

(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: 24.03.2004 GB 0406591 03.06.2004 GB 0412481 27.10.2004 GB 0423844 (71) Applicant: Urquhart, Barry Weybridge Surrey KT13 8QW (GB)	(72) Inventor: Urquhart, Barry Weybridge Surrey KT13 8QW (GB) (74) Representative: Harman, Michael Godfrey  M G Harman & Co., Holmwood, 37 Upper Park Road Camberley, Surrey GU15 2EG Camberley, Surrey GU15 2EG (GB)