(19)

(11)

EP 1 409 905 A1

(12)

(43) Date of publication: 21.04.2004 Bulletin 2004/17 (21) Application number: 01951165.8 (22) Date of filing: 23.01.2001

(51) International Patent Classification (IPC)7: F16K 37/00 (86) International application number: PCT/GB2001/000257 (87) International publication number: WO 2001/059346 (16.08.2001 Gazette 2001/33)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR (30) Priority: 10.02.2000 GB 0002988 14.03.2000 GB 0006058 (71) Applicant: Drallim Industries Limited Bexhill-on-Sea,East Sussex TN40 2PJ (GB)	(72) Inventors: ESSAM, Derek, Mark EastbourneEast Sussex BN22 7JY (GB) GIMBLETT, Christopher St Leonards-on-SeaEast Sussex TN37 7DT (GB) (74) Representative: Brookes Batchellor  102-108 Clerkenwell Road London EC1M 5SA London EC1M 5SA (GB)