(19)

(11)

EP 1 631 729 A1

(12)

(43) Date of publication: 08.03.2006 Bulletin 2006/10 (21) Application number: 04732664.0 (22) Date of filing: 13.05.2004

(51) International Patent Classification (IPC):  E04D 13/00(1968.09) E04D 3/28(1968.09) E04D 3/06(1968.09) E04C 2/54(1968.09) (86) International application number: PCT/GB2004/002067 (87) International publication number: WO 2004/106662 (09.12.2004 Gazette 2004/50)

(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 (30) Priority: 02.06.2003 GB 0312549 (71) Applicant: Quietguard Limited Flintshire, North Wales CH7 1RA (GB)	(72) Inventor: BURDEN, Anthony Paul Flintshire, North Wales CH7 1RA (GB) (74) Representative: Wilson Gunn  5th Floor, Blackfriars House, The Parsonage Manchester M3 2JA Manchester M3 2JA (GB)