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(11)

EP 2 057 326 A1

(12)

(43) Date of publication: 13.05.2009 Bulletin 2009/20 (21) Application number: 07733326.8 (22) Date of filing: 22.06.2007

(51) International Patent Classification (IPC):  E04D 15/02(2006.01) E04F 21/18(2006.01) (86) International application number: PCT/GB2007/002331 (87) International publication number: WO 2008/023139 (28.02.2008 Gazette 2008/09)

(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: 25.08.2006 GB 0616811 (71) Applicant: Jackson, Allan, Peter Wallington Surrey SM6 8NQ (GB)	(72) Inventor: Jackson, Allan, Peter Wallington Surrey SM6 8NQ (GB) (74) Representative: Thompson, Trevor George  Thompson Gray LLP Central Court 25 Southampton Buildings GB-London WC2A 1AL GB-London WC2A 1AL (GB)