(19)

(11)

EP 4 090 806 A1

(12)

(43) Date of publication: 23.11.2022 Bulletin 2022/47 (21) Application number: 20707160.6 (22) Date of filing: 16.01.2020

(51) International Patent Classification (IPC):  E04B 2/58(2006.01) E04B 2/62(2006.01) E04B 1/78(2006.01) E04B 2/60(2006.01) E04B 2/74(2006.01) E04C 2/34(2006.01) (52) Cooperative Patent Classification (CPC): E04B 2/62; E04C 2002/3477; E04B 1/6187; E04B 2001/6195; E04B 2/7448; E04B 1/80 (86) International application number: PCT/IB2020/050340 (87) International publication number: WO 2021/144612 (22.07.2021 Gazette 2021/29)

(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 (71) Applicants: Valente, Carmine Franco 03042 Atina, Frosinone (IT) Corvi, Carlo Graziano 6964 Davesco Soragno (CH)	(72) Inventors: Valente, Carmine Franco 03042 Atina, Frosinone (IT) Corvi, Carlo Graziano 6964 Davesco Soragno (CH) (74) Representative: Leihkauf, Steffen Falk et al Jacobacci & Partners S.p.A. Via Senato, 8 20121 Milano 20121 Milano (IT)