(19)

(11)

EP 4 500 090 A1

(12)

(43) Date of publication: 05.02.2025 Bulletin 2025/06 (21) Application number: 23717055.0 (22) Date of filing: 29.03.2023

(51) International Patent Classification (IPC):  F24F 13/02(2006.01) F24F 13/078(2006.01) F24F 13/06(2006.01) F24F 13/10(2006.01) (52) Cooperative Patent Classification (CPC): F24F 13/02; F24F 13/0254; F24F 13/078; F24F 2221/14; F24F 13/105; F24F 13/06 (86) International application number: PCT/EP2023/058157 (87) International publication number: WO 2023/186989 (05.10.2023 Gazette 2023/40)

(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: 30.03.2022 GB 202204555 (71) Applicant: Lumi-Plugin Ltd Greenham Business Park Newbury Berkshire RG19 6HW (GB)	(72) Inventors: WARD, Robert Newbury Berkshire RG19 6HW (GB) WESTON, Thomas Newbury Berkshire RG19 6HW (GB) (74) Representative: Beck Greener LLP  Fulwood House 12 Fulwood Place London WC1V 6HR London WC1V 6HR (GB)