(19)

(11)

EP 4 441 289 A1

(12)

(43) Date of publication: 09.10.2024 Bulletin 2024/41 (21) Application number: 22840451.3 (22) Date of filing: 28.11.2022

(51) International Patent Classification (IPC):  D21D 1/30(2006.01) (52) Cooperative Patent Classification (CPC): D21D 1/30; D21D 1/22 (86) International application number: PCT/US2022/051060 (87) International publication number: WO 2023/101906 (08.06.2023 Gazette 2023/23)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 03.12.2021 US 202117541527 (71) Applicant: Andritz Inc. Alpharetta, GA 30004 (US)	(72) Inventors: KOHLER, Gregory R. Alpharetta, Georgia 30004 (US) ZERBE, Paul Alpharetta, Georgia 30004 (US) ORR, Timothy Alpharetta, Georgia 30004 (US) GANTHER, Kevin Alpharetta, Georgia 30004 (US) RUCH, Julie Alpharetta, Georgia 30004 (US) (74) Representative: Hoffmann Eitle  Patent- und Rechtsanwälte PartmbB Arabellastraße 30 81925 München 81925 München (DE)