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(11)

EP 4 433 704 A1

(12)

(43) Date of publication: 25.09.2024 Bulletin 2024/39 (21) Application number: 22896198.3 (22) Date of filing: 17.11.2022

(51) International Patent Classification (IPC):  F03G 7/04(2006.01) F24T 50/00(2018.01) F24T 10/13(2018.01) C25B 1/04(2021.01) C02F 1/461(2023.01) F24T 10/30(2018.01) F24T 10/10(2018.01) C25B 1/02(2006.01) C25B 1/042(2021.01) (52) Cooperative Patent Classification (CPC): Y02E 60/36; C02F 1/461; F24T 50/00; C25B 1/04; C25B 1/042; F24T 10/20; C02F 2103/08; C02F 2201/009; F03G 4/035; C25B 15/00 (86) International application number: PCT/NO2022/050266 (87) International publication number: WO 2023/091026 (25.05.2023 Gazette 2023/21)

(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: 18.11.2021 NO 20211382 (71) Applicant: Affin AS 3674 Notodden (NO)	(72) Inventors: FURU, Harald 0258 Oslo (NO) BRANDSÆTER, Helge 4656 HAMRESANDEN (NO) (74) Representative: Deans, Michael John Percy et al M.J.P. Deans Lane End House Hookley Lane Elstead, Surrey GU8 6JE Elstead, Surrey GU8 6JE (GB)