(19)

(11)

EP 1 175 282 A1

(12)

(43) Date of publication: 30.01.2002 Bulletin 2002/05 (21) Application number: 00927414.3 (22) Date of filing: 17.04.2000

(51) International Patent Classification (IPC)7: B24B 41/06, B24B 49/02, B24B 49/04 (86) International application number: PCT/GB0001/464 (87) International publication number: WO 0064/632 (02.11.2000 Gazette 2000/44)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 23.04.1999 GB 9909279 (71) Applicant: Unova U.K. Limited Aylesbury, Buckinghamshire HP20 2RQ (GB)	(72) Inventor: FRENCH, David Ian Keighley,West Yorkshire BD20 8AP (GB) (74) Representative: Nash, Keith Wilfrid  KEITH W. NASH & Co., 90-92 Regent Street Cambridge CB2 1DP Cambridge CB2 1DP (GB)