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(11)

EP 4 529 593 A1

(12)

(43) Date of publication: 02.04.2025 Bulletin 2025/14 (21) Application number: 23755018.1 (22) Date of filing: 23.05.2023

(51) International Patent Classification (IPC):  F04C 18/344(2006.01) F04C 28/06(2006.01) F04C 28/24(2006.01) F04C 25/02(2006.01) (52) Cooperative Patent Classification (CPC): F04C 18/344; F04C 28/24; F04C 28/06; F04C 25/02; F04C 2220/10 (86) International application number: PCT/EP2023/063802 (87) International publication number: WO 2023/227610 (30.11.2023 Gazette 2023/48)

(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: 23.05.2022 EP 22305762 (71) Applicant: Leybold France SAS 26500 Bourg-Lès-Valence (FR)	(72) Inventors: REYNAUD, Benoit 26500 Bourg-Lès-Valence (FR) DESPESSE, Christophe 26500 Bourg-Lès-Valence (FR) MOULIN, Christian 26500 Bourg-Lès-Valence (FR) GOURE, Augustin 26500 Bourg-Lès-Valence (FR) (74) Representative: Arnold, Emily Anne  Edwards Limited Innovation Drive Burgess Hill, West Sussex RH15 9TW Burgess Hill, West Sussex RH15 9TW (GB)