(19)

(11)

EP 1 286 777 A1

(12)

(43) Date of publication: 05.03.2003 Bulletin 2003/10 (21) Application number: 01900220.3 (22) Date of filing: 19.01.2001

(51) International Patent Classification (IPC)7: B02C 4/02, B30B 3/04 (86) International application number: PCT/IB0100/058 (87) International publication number: WO 0107/8898 (25.10.2001 Gazette 2001/43)

(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: 17.04.2000 DK 200000646 (71) Applicant: F.L. Smidth & Co. A/S DK-2500 Valby, Copenhagen (DK)	(72) Inventor: JENSEN, Lars DK-2660 Bröndby Strand (DK) (74) Representative: Hynell, Magnus et al Hynell Patenttjänst AB,Patron Carls väg 2 683 40 Hagfors/Uddeholm 683 40 Hagfors/Uddeholm (SE)