(19)

(11)

EP 0 857 269 A1

(12)

(43) Date of publication: 12.08.1998 Bulletin 1998/33 (21) Application number: 96938345.0 (22) Date of filing: 12.11.1996

(51) International Patent Classification (IPC):  F16K 17/ 12( . ) F16K 35/ 10( . ) F16K 17/ 194( . ) (86) International application number: PCT/GB1996/002789 (87) International publication number: WO 1997/018410 (22.05.1997 Gazette 1997/22)

(84) Designated Contracting States: DE ES FR GB IT PT (30) Priority: 14.11.1995 GB 19950023239 (71) Applicant: Vapa-Sava UK Sales & Distribution Ltd. Wombourne, Near Wolverhampton WV5 0AL (GB)	(72) Inventor: FOSTER, Tim West Yorkshire WF10 2AA (GB) (74) Representative: Orr, William McLean, et al  URQUHART-DYKES & LORD 5th Floor, Tower House Merrion Way Leeds West Yorkshire, LS2 8PA Leeds West Yorkshire, LS2 8PA (GB)