(19)

(11)

EP 1 354 111 A1

(12)

(43) Date of publication: 22.10.2003 Bulletin 2003/43 (21) Application number: 01998706.4 (22) Date of filing: 28.11.2001

(51) International Patent Classification (IPC)7: E04H 9/14 (86) International application number: PCT/GB0105/291 (87) International publication number: WO 0204/4501 (06.06.2002 Gazette 2002/23)

(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: 28.11.2000 GB 0028985 05.01.2001 GB 0100325 (71) Applicant: Flodef Limited Llanelli SA15 1AQ (GB)	(72) Inventors: LOCKWOOD, John SwanseaSA4 1PP (GB) LOCKWOOD, Steven Swa nsea SA4 1PS (GB) (74) Representative: Gallafent, Antony Xavier et al Urquhart-Dykes & Lord,Alexandra House,1 Alexandra Road Swansea SA1 5ED Swansea SA1 5ED (GB)