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EP 4 771 271 A1

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(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24863889.2 (22) Date of filing: 13.09.2024

(51) International Patent Classification (IPC):  F03B 13/18(2006.01) H02K 7/18(2006.01) F03B 13/22(2006.01) (52) Cooperative Patent Classification (CPC): Y02E 10/30; H02K 35/02; H02K 35/04; H02K 7/18; F05B 2240/40; F05B 2220/708; F05B 2220/705; F05B 2220/61; F05B 2220/62; F03B 13/20; F05B 2220/707; F03B 13/1845 (86) International application number: PCT/AU2024/050988 (87) International publication number: WO 2025/054673 (20.03.2025 Gazette 2025/12)

(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: 15.09.2023 AU 2023902993 (71) Applicant: D-Spar Technologies Pty Ltd East Perth, WA 6004 (AU)	(72) Inventor: RENWICK, Simon James Cottesloe, Western Australia 6011 (AU) (74) Representative: EIP  Fairfax House 15 Fulwood Place London WC1V 6HU London WC1V 6HU (GB)