(19)

(11)

EP 4 526 616 A1

(12)

(43) Date of publication: 26.03.2025 Bulletin 2025/13 (21) Application number: 23729495.4 (22) Date of filing: 12.05.2023

(51) International Patent Classification (IPC):  F41H 1/02(2006.01) F41H 5/04(2006.01) (52) Cooperative Patent Classification (CPC): F41H 1/02; F41H 5/0457 (86) International application number: PCT/IB2023/054919 (87) International publication number: WO 2023/223161 (23.11.2023 Gazette 2023/47)

(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: 16.05.2022 IT 202200010019 (71) Applicant: Gubellini, Alberto 40055 Castenaso (BO) (IT)	(72) Inventor: Gubellini, Alberto 40055 Castenaso (BO) (IT) (74) Representative: Dall'Olio, Christian et al INVENTION S.r.l. Via delle Armi, 1 40137 Bologna 40137 Bologna (IT)