(19)

(11)

EP 2 785 912 A1

(12)

(43) Date of publication: 08.10.2014 Bulletin 2014/41 (21) Application number: 12853264.5 (22) Date of filing: 14.11.2012

(51) International Patent Classification (IPC):  D21D 1/30(2006.01) F16C 35/04(2006.01) B02C 7/14(2006.01) (86) International application number: PCT/SE2012/051252 (87) International publication number: WO 2013/081527 (06.06.2013 Gazette 2013/23)

(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: 30.11.2011 SE 1151140 (71) Applicant: Valmet AB 851 94 Sundsvall (SE)	(72) Inventors: MELLANDER, Stefan S-865 32 Alnö (SE) LUNDBERG, Jonas S-856 42 Sundsvall (SE) (74) Representative: Groth & Co. KB  P.O. Box 6107 102 32 Stockholm 102 32 Stockholm (SE)