(19)

(11)

EP 2 188 441 A1

(12)

(43) Date of publication: 26.05.2010 Bulletin 2010/21 (21) Application number: 08717357.1 (22) Date of filing: 04.03.2008

(51) International Patent Classification (IPC):  D21F 1/00(2006.01) (86) International application number: PCT/EP2008/052594 (87) International publication number: WO 2008/122471 (16.10.2008 Gazette 2008/42)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 10.04.2007 US 733455 (71) Applicant: Voith Patent GmbH 89522 Heidenheim (DE)	(72) Inventors: MORTON, Antony Yorkshire LS298QU (GB) SCHLIECKAU, Torben 89522 Heidenheim (DE) BROCKÖTTER, Berry NL-7161 WG Neede (NL) HODSON, Mark Lancashire BB2 7JU (GB) WESTERKAMP, Arved 72581 Dettingen/Ems (DE)