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EP 4 824 432 A1

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(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 23961685.7 (22) Date of filing: 15.12.2023

(51) International Patent Classification (IPC):  F16B 19/05(2006.01) B21J 15/02(2006.01) F16B 5/04(2006.01) (52) Cooperative Patent Classification (CPC): F16B 19/05; F16B 5/04; B21J 15/022 (86) International application number: PCT/US2023/084305 (87) International publication number: WO 2025/128123 (19.06.2025 Gazette 2025/25)

(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 (71) Applicant: Howmet Aerospace Inc. Pittsburgh, PA 15212 (US)	(72) Inventor: WILLIAMS, Tom Shrewsbury, Shropshire SY25LL (GB) (74) Representative: Forresters IP LLP  Skygarden Erika-Mann-Straße 11 80636 München 80636 München (DE)