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(11)

EP 4 824 838 A1

(12)

(43) Date of publication: 21.10.2026 Bulletin 2026/43 (21) Application number: 25817680.9 (22) Date of filing: 28.11.2025

(51) International Patent Classification (IPC):  H01F 41/06(2016.01) H01F 41/098(2016.01) (52) Cooperative Patent Classification (CPC): H01F 41/06; H01F 41/098 (86) International application number: PCT/IB2025/062177 (87) International publication number: WO 2026/115495 (04.06.2026 Gazette 2026/23)

(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 LA MA MD TN (30) Priority: 29.11.2024 IT 202400027030 24.01.2025 EP 25153937 07.02.2025 EP 25156629 (71) Applicant: Societa' per Azioni Curti - Costruzioni Meccaniche 48014 Castel Bolognese (RA) (IT)

(72) Inventor: BALDRATI, Andrea 48014 RA (IT) (74) Representative: Gislon, Gabriele et al Marietti, Gislon e Trupiano S.r.l. Via Larga, 16 20122 Milano 20122 Milano (IT)