(19)

(11)

EP 2 340 336 A2

(12)

(88) Date of publication A3: 27.05.2010 (43) Date of publication: 06.07.2011 Bulletin 2011/27 (21) Application number: 09746059.6 (22) Date of filing: 13.05.2009

(51) International Patent Classification (IPC):  E04B 1/26(2006.01) (86) International application number: PCT/GB2009/001198 (87) International publication number: WO 2009/138742 (19.11.2009 Gazette 2009/47)

(84) Designated Contracting States: 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 TR Designated Extension States: AL BA RS (30) Priority: 13.05.2008 GB 0808610 (71) Applicant: Sykes, David Aylesbury Bucks HP20 1NR (GB)	(72) Inventor: Sykes, David Aylesbury Bucks HP20 1NR (GB) (74) Representative: Walker, Neville Daniel Alan et al ipconsult 21A Commercial Road Swanage Dorset BH19 1DF Swanage Dorset BH19 1DF (GB)