(19)

(11)

EP 4 308 774 A1

(12)

(43) Date of publication: 24.01.2024 Bulletin 2024/04 (21) Application number: 22717453.9 (22) Date of filing: 18.03.2022

(51) International Patent Classification (IPC):  E04H 6/08(2006.01) E02D 27/02(2006.01) E02D 27/01(2006.01) (52) Cooperative Patent Classification (CPC): E04H 6/08 (86) International application number: PCT/IT2022/050058 (87) International publication number: WO 2022/195642 (22.09.2022 Gazette 2022/38)

(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 MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 18.03.2021 IT 202100006563 (71) Applicant: Spellucci, Gianfranco 00133 Roma (RM) (IT)	(72) Inventor: Spellucci, Gianfranco 00133 Roma (RM) (IT) (74) Representative: Santi, Filippo et al Barzanò & Zanardo Roma S.p.A. Via Piemonte 26 00187 Roma 00187 Roma (IT)