(19)

(11)

EP 4 515 152 A1

(12)

(43) Date of publication: 05.03.2025 Bulletin 2025/10 (21) Application number: 23796903.5 (22) Date of filing: 24.04.2023

(51) International Patent Classification (IPC):  F24F 7/06(2006.01) F24F 13/22(2006.01) F24F 7/10(2006.01) (52) Cooperative Patent Classification (CPC): F24F 7/06; F24F 13/02; F24F 13/22 (86) International application number: PCT/NO2023/050091 (87) International publication number: WO 2023/211286 (02.11.2023 Gazette 2023/44)

(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: 25.04.2022 NO 20220462 (71) Applicant: Harila, Gunnvald 2740 Roa (NO)	(72) Inventor: Harila, Gunnvald 2740 Roa (NO) (74) Representative: Bryn Aarflot AS  Patent Stortingsgata 8 0161 Oslo 0161 Oslo (NO)