(19)

(11)

EP 1 283 972 A1

(12)

(43) Date of publication: 19.02.2003 Bulletin 2003/08 (21) Application number: 01934044.7 (22) Date of filing: 14.05.2001

(51) International Patent Classification (IPC)7: F23K 3/10, F23B 1/16, F23B 5/00 (86) International application number: PCT/FI0100/460 (87) International publication number: WO 0108/6208 (15.11.2001 Gazette 2001/46)

(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: 12.05.2000 FI 20001128 29.06.2000 FI 20001528 (71) Applicant: Hiltunen, Jouko 73100 Lapinlahti (FI)	(72) Inventor: Hiltunen, Jouko 73100 Lapinlahti (FI) (74) Representative: LEITZINGER OY  Tammasaarenkatu 1 00180 Helsinki 00180 Helsinki (FI)