(19)

(11)

EP 2 569 482 A1

(12)

(43) Date of publication: 20.03.2013 Bulletin 2013/12 (21) Application number: 11780884.0 (22) Date of filing: 29.04.2011

(51) International Patent Classification (IPC):  D21D 5/26(2006.01) F04D 7/04(2006.01) (86) International application number: PCT/SE2011/050538 (87) International publication number: WO 2011/142711 (17.11.2011 Gazette 2011/46)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 10.05.2010 SE 1050462 (71) Applicant: Metso Paper, Inc. 00101 Helsinki (FI)	(72) Inventors: MONSELL, Magnus S-865 33 Alnö (SE) DANIELSSON, Peter S-941 53 Piteå (SE) (74) Representative: Karlsson, Marie  Metso Paper Sweden AB Gustaf Gidlöfs väg 4 85194 Sundsvall 85194 Sundsvall (SE)