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(11)

EP 4 771 228 A1

(12)

(43) Date of publication: 08.07.2026 Bulletin 2026/28 (21) Application number: 24800954.0 (22) Date of filing: 15.10.2024

(51) International Patent Classification (IPC):  E03C 1/23(2006.01) E03C 1/232(2006.01) (52) Cooperative Patent Classification (CPC): E03C 1/2306; E03C 1/232; E03C 2001/2317; E03C 2001/2311 (86) International application number: PCT/IB2024/060082 (87) International publication number: WO 2025/088427 (01.05.2025 Gazette 2025/18)

(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: 26.10.2023 IT 202300022542 (71) Applicant: Ravani SrL 25065 Lumezzane (IT)	(72) Inventor: STEFINI, Federico 25065 Lumezzane (IT) (74) Representative: Pes, Matteo  Biesse S.r.l. Patent Department (sesto piano) Via Corfù, 71 25124 Brescia (BS) 25124 Brescia (BS) (IT)