(19)

(11)

EP 1 064 525 A1

(12)

(43) Date of publication: 03.01.2001 Bulletin 2001/01 (21) Application number: 00900681.8 (22) Date of filing: 17.01.2000

(51) International Patent Classification (IPC)7: G01F 23/02, B65D 90/10 (86) International application number: PCT/GB0000/093 (87) International publication number: WO 0042/396 (20.07.2000 Gazette 2000/29)

(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: 18.01.1999 GB 9900979 (71) Applicant: Fibresec Holdings Limited Skipton,North Yorkshire BD23 2QR (GB)	(72) Inventor: PARDOE, Trevor,Fibresec Holdings Limited Skipton BD23 2QR (GB) (74) Representative: Wharton, Peter Robert et al Urquhart-Dykes & LordTower HouseMerrion Way Leeds LS2 8PA Leeds LS2 8PA (GB)