(19)

(11)

EP 1 922 470 A1

(12)

(43) Date of publication: 21.05.2008 Bulletin 2008/21 (21) Application number: 06779131.9 (22) Date of filing: 19.07.2006

(51) International Patent Classification (IPC):  E06C 7/46(2006.01) (86) International application number: PCT/GB2006/003055 (87) International publication number: WO 2007/010297 (25.01.2007 Gazette 2007/04)

(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 NL PL PT RO SE SI SK TR (30) Priority: 19.07.2005 GB 0514761 (71) Applicant: Ladderm8 Limited Burslem, Stoke on Trent, Staffs ST6 2BL (GB)	(72) Inventor: ROBINSON, Graham The Poplars Stoke on Trent Staffs ST6 8AS (GB) (74) Representative: Wilson Gunn  5th Floor Blackfriars House The Parsonage Manchester M3 2JA Manchester M3 2JA (GB)