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(11)

EP 4 348 121 A1

(12)

(43) Date of publication: 10.04.2024 Bulletin 2024/15 (21) Application number: 22729032.7 (22) Date of filing: 24.05.2022

(51) International Patent Classification (IPC):  F24F 5/00(2006.01) F24F 11/77(2018.01) F24F 7/00(2021.01) F24F 13/22(2006.01) F24F 110/12(2018.01) F24F 110/22(2018.01) F24F 7/013(2006.01) F24F 11/80(2018.01) F24F 11/00(2018.01) F24F 110/10(2018.01) F24F 110/20(2018.01) (52) Cooperative Patent Classification (CPC): F24F 2005/0064; F24F 2007/0025; F24F 7/013; F24F 2011/0002; F24F 11/77; F24F 11/80; F24F 2013/221; F24F 2110/10; F24F 2110/12; F24F 2110/20; F24F 2110/22 (86) International application number: PCT/DK2022/050106 (87) International publication number: WO 2022/248003 (01.12.2022 Gazette 2022/48)

(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 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: 27.05.2021 DK PA202170275 (71) Applicant: Udlejer, Hans Jørgen Christensen 8370 Hadsten (DK)	(72) Inventor: CHRISTENSEN, Hans Jorgen deceased (DK)