(19)

(11)

EP 1 819 989 A1

(12)

(43) Date of publication: 22.08.2007 Bulletin 2007/34 (21) Application number: 05762852.1 (22) Date of filing: 07.07.2005

(51) International Patent Classification (IPC):  G01F 11/04(2006.01) B05C 17/005(2006.01) B05C 17/00(2006.01) B01F 15/04(2006.01) B05C 11/10(2006.01) (86) International application number: PCT/GB2005/002684 (87) International publication number: WO 2006/003464 (12.01.2006 Gazette 2006/02)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 07.07.2004 GB 0415253 (71) Applicant: Failsafe Metering International Limited 3 Torridge Close, Henson Way Kettering, Northants NN16 8PY (GB)	(72) Inventors: PENN, Laurence Richard Leicester LE16 8YU (GB) THOMPSON, Philip Kenneth Higham Ferrers NN8 0JE (GB) (74) Representative: Beattie, Alex Thomas Stewart  Forrester & Boehmert Pettenkoferstrasse 20-22 80336 München 80336 München (DE)