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EP 2 847 380 A1

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(43) Date of publication: 18.03.2015 Bulletin 2015/12 (21) Application number: 13725002.3 (22) Date of filing: 09.05.2013

(51) International Patent Classification (IPC):  D21F 1/00(2006.01) D21F 3/02(2006.01) D21F 7/08(2006.01) (86) International application number: PCT/US2013/040360 (87) International publication number: WO 2013/170038 (14.11.2013 Gazette 2013/46)

(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 Designated Extension States: BA ME (30) Priority: 11.05.2012 US 201213469994 (71) Applicant: Albany International Corp. Rochester, NH 03867 (US)	(72) Inventors: EAGLES, Dana Appleton, WI 54914 (US) HANSEN, Robert North Muskegon, MI 49445 (US) KARLSSON, Jonas S-311 45 Falkenberg (SE) (74) Representative: Bugnion Genève  Bugnion S.A. Conseils en Propriété Industrielle Route de Florissant 10 Case Postale 375 1211 Genève 12 1211 Genève 12 (CH)