(19)

(11)

EP 2 443 294 A2

(12)

(88) Date of publication A3: 23.02.2012 (43) Date of publication: 25.04.2012 Bulletin 2012/17 (21) Application number: 10735063.9 (22) Date of filing: 17.06.2010

(51) International Patent Classification (IPC):  E04B 1/80(2006.01) (86) International application number: PCT/GB2010/051007 (87) International publication number: WO 2010/146397 (23.12.2010 Gazette 2010/51)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR Designated Extension States: BA ME RS (30) Priority: 17.06.2009 GB 0910460 (71) Applicant: Hunt Technology Limited Rickmansworth, Hertfordshire WD3 1JJ (GB)	(72) Inventor: PAYNE, John Rickmansworth Hertfordshire WD3 1JJ (GB) (74) Representative: Baker, Philip John et al Keltie LLP Fleet Place House 2 Fleet Place London EC4M 7ET London EC4M 7ET (GB)