(19)

(11)

EP 1 064 485 A1

(12)

(43) Date of publication: 03.01.2001 Bulletin 2001/01 (21) Application number: 99910869.9 (22) Date of filing: 17.03.1999

(51) International Patent Classification (IPC)7: F16K 31/06 (86) International application number: PCT/NL9900/146 (87) International publication number: WO 9949/251 (30.09.1999 Gazette 1999/39)

(84) Designated Contracting States: AT BE CH DE ES FI FR GB IE IT LI LU NL PT SE (30) Priority: 24.03.1998 NL 1008689 28.04.1998 NL 1009009 (71) Applicant: Helvoet B.V. 3223 EV Hellevoetsluis (NL)	(72) Inventor: VAN HOUTE, Jacob, Michiel NL-3223 GG Hellevoetsluis (NL) (74) Representative: Bakkum, Ruben Joseph  van Exter Polak & Charlouis B.V.,P.O. Box 3241 2280 GE Rijswijk 2280 GE Rijswijk (NL)