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(11)

EP 4 824 424 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 24841432.8 (22) Date of filing: 20.12.2024

(51) International Patent Classification (IPC):  F04D 29/10(2006.01) F16J 15/48(2006.01) F04D 29/14(2006.01) (52) Cooperative Patent Classification (CPC): F04D 29/102; F04D 29/143; F16J 15/46; F16J 15/164; F16J 15/3296 (86) International application number: PCT/EP2024/088123 (87) International publication number: WO 2025/133262 (26.06.2025 Gazette 2025/26)

(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 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: 22.12.2023 US 202363614031 P (71) Applicant: Tyco Fire & Security GmbH 8212 Neuhausen am Rheinfall (CH)	(72) Inventors: CLUNET, Francois Charles Andre 44240 La Chapelle-Sur-Erdre (FR) LE SAUSSE, Paul Eric 44300 Nantes (FR) ARNOU, Damien Jean Daniel 49280 La Seguineiere (FR) JANNOUN, Abdel Kader 44470 Carquefou (FR) (74) Representative: Meissner Bolte Nürnberg  Patentanwälte Rechtsanwälte Partnerschaft mbB Bankgasse 3 90402 Nürnberg 90402 Nürnberg (DE)