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EP 4 452 540 A1

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(43) Date of publication: 30.10.2024 Bulletin 2024/44 (21) Application number: 21844243.2 (22) Date of filing: 21.12.2021

(51) International Patent Classification (IPC):  B22F 10/28(2021.01) B23Q 3/15(2006.01) B22F 12/70(2021.01) (52) Cooperative Patent Classification (CPC): B22F 10/28; B22F 12/70; B22F 10/77; B22F 10/322; B29C 64/371; B29C 64/153; B33Y 10/00; B33Y 40/00; B29C 64/25; B33Y 30/00; Y02P 10/25 (86) International application number: PCT/EP2021/086987 (87) International publication number: WO 2023/117053 (29.06.2023 Gazette 2023/26)

(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 Designated Validation States: KH MA MD TN (71) Applicants: S&S Scheftner GmbH 55129 Mainz (DE) Nppower d.o.o. 2272 Gorisnica (SI)	(72) Inventor: LEBEN, Niko 2272 Gori nica (SI) (74) Representative: Schultheiss & Sterzel Patentanwälte PartG mbB  Berner Straße 52 60437 Frankfurt am Main 60437 Frankfurt am Main (DE)