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(11)

EP 4 388 251 A1

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(43) Date of publication: 26.06.2024 Bulletin 2024/26 (21) Application number: 22765661.8 (22) Date of filing: 15.08.2022

(51) International Patent Classification (IPC):  F24F 8/10(2021.01) F24F 11/47(2018.01) F24F 8/22(2021.01) F24F 11/64(2018.01) (52) Cooperative Patent Classification (CPC): F24F 11/47; F24F 11/64; F24F 8/10; F24F 8/22; F24F 2110/65 (86) International application number: PCT/US2022/040332 (87) International publication number: WO 2023/022980 (23.02.2023 Gazette 2023/08)

(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: 16.08.2021 US 202117403669 23.09.2021 US 202117483078 (71) Applicant: Tyco Fire & Security GmbH 8212 Neuhausen am Rheinfall (CH)	(72) Inventors: RISBECK, Michael J. Madison, Wisconsin 53703 (US) DREES, Kirk H. Cedarburg, Wisconsin 53012 (US) DOUGLAS, Jonathan D. Mequon, Wisconsin 53092 (US) (74) Representative: Meissner Bolte Partnerschaft mbB  Patentanwälte Rechtsanwälte Postfach 10 26 05 86016 Augsburg 86016 Augsburg (DE)