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(11)

EP 1 370 800 A1

(12)

(43) Date of publication: 17.12.2003 Bulletin 2003/51 (21) Application number: 02704026.0 (22) Date of filing: 13.03.2002

(51) International Patent Classification (IPC)7: F23C 3/00 (86) International application number: PCT/SE0200/463 (87) International publication number: WO 0207/5209 (26.09.2002 Gazette 2002/39)

(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: 19.03.2001 SE 0100948 (71) Applicant: SANDVIK AKTIEBOLAG 811 81 Sandviken (SE)	(72) Inventors: LÖVGREN, Hans S-734 36 Hallstahammar (SE) LEWIN, Thomas S-734 40 Hallstahammar (SE) (74) Representative: Örtenblad, Bertil Tore et al Noréns Patentbyra ABP.O. Box 10198 100 55 Stockholm 100 55 Stockholm (SE)