(19)

(11)

EP 2 078 176 A1

(12)

(43) Date of publication: 15.07.2009 Bulletin 2009/29 (21) Application number: 07823109.9 (22) Date of filing: 16.10.2007

(51) International Patent Classification (IPC):  F24F 13/00(2006.01) B32B 9/00(2006.01) (86) International application number: PCT/FI2007/000249 (87) International publication number: WO 2008/053067 (08.05.2008 Gazette 2008/19)

(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 (30) Priority: 03.11.2006 FI 20060966 (71) Applicant: Fläkt Woods AB 55184 Jönköping (SE)	(72) Inventors: HOKKANEN, Jari 37800 Toijala (FI) POSTI, Olli 02620 Espoo (FI) (74) Representative: Heinänen, Pekka Antero et al Heinänen Oy Patent Agency Airport Plaza Äyritie 8 D 01510 Vantaa 01510 Vantaa (FI)