(19)

(11)

EP 4 259 887 A1

(12)

(43) Date of publication: 18.10.2023 Bulletin 2023/42 (21) Application number: 21810737.3 (22) Date of filing: 03.11.2021

(51) International Patent Classification (IPC):  E04B 1/76(2006.01) E04H 9/02(2006.01) E04C 2/38(2006.01) (52) Cooperative Patent Classification (CPC): E04B 1/762; E04B 1/7675; E04B 1/7629; E04C 2/384 (86) International application number: PCT/IB2021/060178 (87) International publication number: WO 2022/123348 (16.06.2022 Gazette 2022/24)

(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: 11.12.2020 IT 202000030590 (71) Applicant: Progetto Sisma S.r.l. 41042 Fiorano Modenese (MO) (IT)	(72) Inventors: TENEGGI, Cristian 41042 Fiorano Modenese (MO) (IT) DALLARI, Andrea 41042 Fiorano Modenese (MO) (IT) GAMBARELLI, Marco 41042 Fiorano Modenese (MO) (IT) (74) Representative: Gamba, Alessandro  Jacobacci & Partners S.p.A. Piazza della Vittoria, 11 25122 Brescia 25122 Brescia (IT)