(19)

(11)

EP 4 798 774 A1

(12)

(43) Date of publication: 02.09.2026 Bulletin 2026/36 (21) Application number: 24794067.9 (22) Date of filing: 18.10.2024

(51) International Patent Classification (IPC):  D01G 11/00(2006.01) D01G 21/00(2006.01) (52) Cooperative Patent Classification (CPC): D01G 21/00; D01G 11/00; Y02W 30/66 (86) International application number: PCT/EP2024/079459 (87) International publication number: WO 2025/087801 (01.05.2025 Gazette 2025/18)

(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: GE KH MA MD TN (30) Priority: 24.10.2023 CH 11782023 (71) Applicant: Rieter AG 8406 Winterthur (CH)	(72) Inventors: SOOM, Jonathan 8400 Winterthur (CH) WILL, Michael 8406 Winterthur (CH) (74) Representative: Rieter  Klosterstrasse 20 8406 Winterthur 8406 Winterthur (CH)