(19)

(11)

EP 1 257 845 A2

(12)

(88) Date of publication A3: 14.03.2002 (43) Date of publication: 20.11.2002 Bulletin 2002/47 (21) Application number: 01904128.4 (22) Date of filing: 09.02.2001

(51) International Patent Classification (IPC)7: G01T 1/00 (86) International application number: PCT/GB0100/528 (87) International publication number: WO 0105/9476 (16.08.2001 Gazette 2001/33)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 09.02.2000 GB 0002873 (71) Applicant: CBAMS Limited York Y04 1LZ (GB)	(72) Inventors: GARNER, Ronald, Colin York YO4 1LZ (GB) GARNER, June, Valerie York YO4 1LZ (GB) LEONG, Daniel, Nichol York YO4 1LZ (GB) WHATTAM, Matthew, Michael York YO4 1LZ (GB) CALAM, Andrew, David York YO4 1LZ (GB) GREGORY, Sally Joanne York YO4 1LZ (GB) (74) Representative: Harrison Goddard Foote  Belgrave HallBelgrave Street Leeds LS2 8DD Leeds LS2 8DD (GB)