(19)

(11)

EP 2 057 324 A1

(12)

(43) Date of publication: 13.05.2009 Bulletin 2009/20 (21) Application number: 07804030.0 (22) Date of filing: 10.08.2007

(51) International Patent Classification (IPC):  E04B 7/22(2006.01) E04C 3/292(2006.01) E04C 3/29(2006.01) (86) International application number: PCT/GB2007/003049 (87) International publication number: WO 2008/020179 (21.02.2008 Gazette 2008/08)

(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 Designated Extension States: AL BA HR MK RS (30) Priority: 12.08.2006 GB 0616114 29.06.2007 GB 0712681 (71) Applicants: Nalborczyk, Stefan Martin Broughton Claverley, Shropshire WV5 7AS (GB) Turner, Michael James Paul Penkridge Staffordshire ST19 5QP (GB)	(72) Inventors: Nalborczyk, Stefan Martin Broughton Claverley, Shropshire WV5 7AS (GB) Turner, Michael James Paul Penkridge Staffordshire ST19 5QP (GB) (74) Representative: Coles, Pamela Ruth  Marks & Clerk LLP Alpha Tower Suffolk Street Queensway Birmingham B1 1TT Birmingham B1 1TT (GB)