(19)

(11)

EP 1 200 684 A1

(12)

(43) Date of publication: 02.05.2002 Bulletin 2002/18 (21) Application number: 00946104.7 (22) Date of filing: 14.07.2000

(51) International Patent Classification (IPC)7: E04B 1/26 (86) International application number: PCT/GB0002/722 (87) International publication number: WO 0106/068 (25.01.2001 Gazette 2001/04)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 20.07.1999 GB 9916839 (71) Applicant: Marlow & Co. Ltd. Bury St. Edmunds,Suffolk IP32 7AP (GB)	(72) Inventor: SMITH, Roger Suffolk IP31 3PB (GB) (74) Representative: Nash, Keith Wilfrid  KEITH W. NASH & Co.,90-92 Regent Street Cambridge CB2 1DP Cambridge CB2 1DP (GB)