(19)

(11)

EP 1 294 997 A1

(12)

(43) Date of publication: 26.03.2003 Bulletin 2003/13 (21) Application number: 01943655.9 (22) Date of filing: 28.06.2001

(51) International Patent Classification (IPC)7: E04H 9/04 (86) International application number: PCT/GB0102/870 (87) International publication number: WO 0200/6611 (24.01.2002 Gazette 2002/04)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 28.06.2000 GB 0015675 10.03.2001 GB 0105963 (71) Applicant: Cintec International Limited Newport,Gwent NP9 5FA (GB)	(72) Inventor: JAMES, Peter Chepstow,Gwent NP6 6QP (GB) (74) Representative: Ratcliffe, Susan Margaret  Wynne-Jones, Lainé & JamesMorgan Arcade Chambers33 St. Mary Street Cardiff CF10 1AF Cardiff CF10 1AF (GB)