(19)

(11)

EP 2 004 920 A1

(12)

(43) Date of publication: 24.12.2008 Bulletin 2008/52 (21) Application number: 07712902.1 (22) Date of filing: 14.03.2007

(51) International Patent Classification (IPC):  E04B 1/41(2006.01) (86) International application number: PCT/GB2007/000910 (87) International publication number: WO 2007/104993 (20.09.2007 Gazette 2007/38)

(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 MT NL PL PT RO SE SI SK TR (30) Priority: 15.03.2006 GB 0605218 (71) Applicant: K Guard UK Limited Arlesey, Bedfordshire SG15 6RF (GB)	(72) Inventor: TROTTER, Alec Bedfordshire SG15 6RF (GB) (74) Representative: Hutchins, Michael Richard  M.R. Hutchins & Co 33 Connaught Way Tunbridge Wells Kent TN4 9QP Kent TN4 9QP (GB)