(19)

(11)

EP 1 579 085 A1

(12)

(43) Date of publication: 28.09.2005 Bulletin 2005/39 (21) Application number: 03778581.3 (22) Date of filing: 03.12.2003

(51) International Patent Classification (IPC)7: E04B 1/348 (86) International application number: PCT/GB2003/005270 (87) International publication number: WO 2004/051017 (17.06.2004 Gazette 2004/25)

(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: 03.12.2002 GB 0228164 (71) Applicant: Henley Consultants Ltd. Isle of Man (GB)	(72) Inventor: Window, John Market Harborough, Leicestershire LE16 7 (GB) (74) Representative: Marshall, John Grahame  SERJEANTS 25 The Crescent King Street Leicester LE1 6RX Leicester LE1 6RX (GB)