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(11)

EP 2 066 981 A1

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(43) Date of publication: 10.06.2009 Bulletin 2009/24 (21) Application number: 07748213.1 (22) Date of filing: 08.06.2007

(51) International Patent Classification (IPC):  F24D 3/10(2006.01) F24D 10/00(2006.01) (86) International application number: PCT/SE2007/000550 (87) International publication number: WO 2008/041897 (10.04.2008 Gazette 2008/15)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 04.10.2006 SE 0602072 (71) Applicant: Tour & Andersson AB 524 80 Ljung (SE)	(72) Inventors: HOLMGREN, Björn 523 33 Ulricehamn (SE) JONSSON, Jan-Olof 524 41 Ljung (SE) (74) Representative: Pitkänen, Hannu Alpo Antero et al Patent Agency Pitkänen Oy P.O. Box 1188 70211 Kuopio 70211 Kuopio (FI)