(19)

(11)

EP 2 499 307 A1

(12)

(43) Date of publication: 19.09.2012 Bulletin 2012/38 (21) Application number: 10795741.7 (22) Date of filing: 10.11.2010

(51) International Patent Classification (IPC):  E04B 2/44(2006.01) B28B 7/00(2006.01) (86) International application number: PCT/GB2010/002068 (87) International publication number: WO 2011/058309 (19.05.2011 Gazette 2011/20)

(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 RS SE SI SK SM TR (30) Priority: 10.11.2009 GB 0919626 (71) Applicant: Gray, John E. Douglas Isle of Man IM1 1AT (GB)	(72) Inventor: Gray, John E. Douglas Isle of Man IM1 1AT (GB) (74) Representative: Atkinson, Peter Birch  Marks & Clerk LLP 1 New York Street Manchester, M1 4HD Manchester, M1 4HD (GB)