(19)

(11)

EP 1 322 820 A1

(12)

(43) Date of publication: 02.07.2003 Bulletin 2003/27 (21) Application number: 01988802.3 (22) Date of filing: 28.09.2001

(51) International Patent Classification (IPC)7: E02D 5/14 (86) International application number: PCT/GB0104/371 (87) International publication number: WO 0203/5011 (02.05.2002 Gazette 2002/18)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR (30) Priority: 30.09.2000 GB 0023972 (71) Applicant: Corus UK Limited London SW1P 4WY (GB)	(72) Inventor: WHITE, Graham, Robert Kempston,Bedfordshire MK42 8LT (GB) (74) Representative: Fry, Alan Valentine et al Fry Heath & Spence LLP,The Gables,Massetts Road Horley,Surrey RH6 7DQ Horley,Surrey RH6 7DQ (GB)