(19)

(11)

EP 1 297 223 A1

(12)

(43) Date of publication: 02.04.2003 Bulletin 2003/14 (21) Application number: 01931958.1 (22) Date of filing: 25.05.2001

(51) International Patent Classification (IPC)7: E01C 23/08, B44D 3/16, B08B 7/00 (86) International application number: PCT/GB0102/357 (87) International publication number: WO 0109/0485 (29.11.2001 Gazette 2001/48)

(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: 25.05.2000 GB 0012814 26.01.2001 GB 0102144 (71) Applicant: Lineclean Limited London EC2A 2HS (GB)	(72) Inventor: BRIGGS, Peter Flitton,Beds. MK45 5EE (GB) (74) Representative: Keltie, David Arthur  David Keltie AssociatesFleet Place House2 Fleet Place London EC4M 7ET London EC4M 7ET (GB)