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(11)

EP 4 445 079 A1

(12)

(43) Date of publication: 16.10.2024 Bulletin 2024/42 (21) Application number: 22904776.6 (22) Date of filing: 07.12.2022

(51) International Patent Classification (IPC):  F24H 3/04(2022.01) H05B 3/40(2006.01) F24H 9/06(2006.01) F24H 9/1863(2022.01) F24H 3/02(2022.01) H05B 3/06(2006.01) (52) Cooperative Patent Classification (CPC): F24H 3/04; F24H 9/1863; H05B 3/06; H05B 3/40; H05B 2203/022; F24H 3/022; F24H 3/0405; F24H 9/0063 (86) International application number: PCT/SE2022/051155 (87) International publication number: WO 2023/106992 (15.06.2023 Gazette 2023/24)

(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: 10.12.2021 SE 2130355 13.12.2021 SE 2130358 (71) Applicant: Kanthal AB 734 27 Hallstahammar (SE)	(72) Inventor: EKSTRÖM, Jonas 73427 Hallstahammar (SE) (74) Representative: Setréus, Ellen  Alleima EMEA AB 811 81 Sandviken 811 81 Sandviken (SE)