(19)

(11)

EP 1 654 503 A1

(12)

(43) Date of publication: 10.05.2006 Bulletin 2006/19 (21) Application number: 04733221.8 (22) Date of filing: 14.05.2004

(51) International Patent Classification (IPC):  F24J 3/08(1985.01) (86) International application number: PCT/SE2004/000743 (87) International publication number: WO 2005/015095 (17.02.2005 Gazette 2005/07)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR Designated Extension States: LT LV (30) Priority: 08.08.2003 SE 0302190 (71) Applicant: IVT INDUSTRIER AB S-573 28 Tranas (SE)	(72) Inventors: WÄRNELÖV, Johnny S-573 43 Tran s (SE) KRONSTRÖM, Urban S-573 39 Tran s (SE) (74) Representative: Pitkänen, Hannu Alpo Antero  Patent Agency Pitkänen Oy, P.O. Box 1188 70211 Kuopio 70211 Kuopio (FI)