(19)

(11)

EP 0 983 457 A1

(12)

(43) Date of publication: 08.03.2000 Bulletin 2000/10 (21) Application number: 98926011.2 (22) Date of filing: 28.05.1998

(51) International Patent Classification (IPC)7: F16K 7/17 (86) International application number: PCT/SE9801/013 (87) International publication number: WO 9854/495 (03.12.1998 Gazette 1998/48)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 30.05.1997 SE 9702061 (71) Applicant: APV Steridose 428 36 Kallered (SE)	(72) Inventor: BACKMAN, Jan S-722 31 Väster s (SE) (74) Representative: Egeröd, Lisbeth et al Göteborgs Patentbyra Dahls ABSjöporten 4 417 64 Göteborg 417 64 Göteborg (SE)