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(11)

EP 4 515 043 A1

(12)

(43) Date of publication: 05.03.2025 Bulletin 2025/10 (21) Application number: 23729183.6 (22) Date of filing: 21.04.2023

(51) International Patent Classification (IPC):  E02D 29/063(2006.01) E02D 29/07(2006.01) E02D 29/067(2006.01) E02D 29/073(2006.01) (52) Cooperative Patent Classification (CPC): E02D 29/067; E02D 29/07; E02D 29/073; E02D 29/063 (86) International application number: PCT/IT2023/000014 (87) International publication number: WO 2023/209744 (02.11.2023 Gazette 2023/44)

(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: 26.04.2022 IT 202200008171 (71) Applicant: Burigo, Mario 37121 Verona (VR) (IT)	(72) Inventors: SANTARELLI, Gianni 67100 L'Aquila (AQ) (IT) BURIGO, Mario 37121 Verona (VR) (IT)