(19)

(11)

EP 1 608 826 A1

(12)

(43) Date of publication: 28.12.2005 Bulletin 2005/52 (21) Application number: 04720918.4 (22) Date of filing: 16.03.2004

(51) International Patent Classification (IPC)7: E04D 1/30, E04D 3/40, E04D 1/36 (86) International application number: PCT/GB2004/001104 (87) International publication number: WO 2004/083550 (30.09.2004 Gazette 2004/40)

(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 PL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 21.03.2003 GB 0306528 (71) Applicant: Burnden Holdings (UK) Limited Bolton BL3 2RB (GB)	(72) Inventor: CHADWICK, Lee,Burnden Holdings (UK) Limited Bolton BL2 2RB (GB) (74) Representative: Brandon, Paul Laurence  APPLEYARD LEES, 15 Clare Road Halifax HX1 2HY Halifax HX1 2HY (GB)