(19)

(11)

EP 1 599 639 A1

(12)

(43) Date of publication: 30.11.2005 Bulletin 2005/48 (21) Application number: 04712599.2 (22) Date of filing: 19.02.2004

(51) International Patent Classification (IPC)7: E04B 5/10, E04B 5/43, E04C 3/10, E04C 3/293 (86) International application number: PCT/GB2004/000653 (87) International publication number: WO 2004/076768 (10.09.2004 Gazette 2004/37)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 25.02.2003 GB 0304248 (71) Applicant: JAMES LUPTON CONSULTANTS LIMITED West Yorkshire WF5 8AF (GB)	(72) Inventor: LUPTON, James Ossett,West Yorkshire WF5 8AF (GB) (74) Representative: Waddington, Richard et al 15 Clare Road Halifax,West Yorkshire HX1 2HY Halifax,West Yorkshire HX1 2HY (GB)