(19)

(11)

EP 4 402 323 A1

(12)

(43) Date of publication: 24.07.2024 Bulletin 2024/30 (21) Application number: 22773538.8 (22) Date of filing: 15.09.2022

(51) International Patent Classification (IPC):  E04B 1/19(2006.01) (52) Cooperative Patent Classification (CPC): E04B 1/1906; E04B 2001/1921; E04B 2001/1927; E04B 2001/1987; E04B 2001/3247 (86) International application number: PCT/EP2022/075709 (87) International publication number: WO 2023/041675 (23.03.2023 Gazette 2023/12)

(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: 15.09.2021 EP 21382836 (71) Applicant: Lopez Blanco, Jose Ramon 28922 Alcorcon (ES)	(72) Inventor: Lopez Blanco, Jose Ramon 28922 Alcorcon (ES) (74) Representative: ZBM Patents - Zea, Barlocci & Markvardsen  Rambla Catalunya, 123 08008 Barcelona 08008 Barcelona (ES)