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(11)

EP 4 817 151 A1

(12)

(43) Date of publication: 07.10.2026 Bulletin 2026/41 (21) Application number: 24821961.0 (22) Date of filing: 20.11.2024

(51) International Patent Classification (IPC):  H02J 3/28(2026.01) H02J 3/46(2026.01) H02J 3/38(2026.01) H02J 3/48(2026.01) (52) Cooperative Patent Classification (CPC): H02J 3/28; H02J 3/381; H02J 3/388; H02J 3/46; H02J 3/48; H02J 3/466 (86) International application number: PCT/GB2024/052930 (87) International publication number: WO 2025/114692 (05.06.2025 Gazette 2025/23)

(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: GE KH MA MD TN (30) Priority: 29.11.2023 GB 202318234 (71) Applicant: Swanbarton Limited Malmesbury, Wiltshire SN16 0LJ (GB)	(72) Inventors: PRICE, Anthony Pinkney, Wiltshire SN16 0LX (GB) MUTCH, David Pinkney, Wiltshire SN16 0LX (GB) CAMPBELL, Hamish Pinkney Wiltshire SN16 0LX (GB) JINKS, James Pinkney Wiltshire SN16 0LX (GB) PRICE, Christopher Pinkney Wiltshire SN16 0LX (GB) (74) Representative: Handsome I.P. Ltd  27-28 Monmouth Street Bath BA1 2AP Bath BA1 2AP (GB)