(19)

(11)

EP 1 421 311 A1

(12)

(43) Date of publication: 26.05.2004 Bulletin 2004/22 (21) Application number: 02755250.4 (22) Date of filing: 23.08.2002

(51) International Patent Classification (IPC)7: F16K 29/00, B25B 27/24 (86) International application number: PCT/GB2002/003917 (87) International publication number: WO 2003/019057 (06.03.2003 Gazette 2003/10)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 23.08.2001 GB 0120496 (71) Applicant: Enston, Robert Peter Conway,North Wales LL32 8ZR (GB)	(72) Inventor: Enston, Robert Peter Conway,North Wales LL32 8ZR (GB) (74) Representative: Weydert, Robert et al Dennemeyer & Associates S.A.P.O. Box 1502 1015 Luxembourg 1015 Luxembourg (LU)