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EP 4 204 687 A1

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(43) Date of publication: 05.07.2023 Bulletin 2023/27 (21) Application number: 21769687.1 (22) Date of filing: 25.08.2021

(51) International Patent Classification (IPC):  F04C 23/00(2006.01) F04C 27/00(2006.01) F04C 25/02(2006.01) (52) Cooperative Patent Classification (CPC): F04C 25/02; F04C 23/001; F04C 27/009 (86) International application number: PCT/EP2021/073450 (87) International publication number: WO 2022/043357 (03.03.2022 Gazette 2022/09)

(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 (30) Priority: 26.08.2020 DE 202020104945 U (71) Applicant: Leybold GmbH 50968 Köln (DE)	(72) Inventors: SCHILLER, Dirk 50968 Cologne (DE) HELLMIG, Adrian 50968 Cologne (DE) GIEBMANNS, Wolfgang 50968 Cologne (DE) DREIFERT, Thomas 50968 Cologne (DE) (74) Representative: Arnold, Emily Anne  Edwards Limited Innovation Drive Burgess Hill, West Sussex RH15 9TW Burgess Hill, West Sussex RH15 9TW (GB)