(19)

(11)

EP 4 222 326 A1

(12)

(43) Date of publication: 09.08.2023 Bulletin 2023/32 (21) Application number: 21783055.3 (22) Date of filing: 01.10.2021

(51) International Patent Classification (IPC):  E04B 2/74(2006.01) (52) Cooperative Patent Classification (CPC): E04B 2002/7462; E04B 2/7457 (86) International application number: PCT/IB2021/059035 (87) International publication number: WO 2022/070151 (07.04.2022 Gazette 2022/14)

(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: 01.10.2020 BE 202005678 (71) Applicant: AVC Gemino BVBA 8500 Kortrijk (BE)	(72) Inventors: LAMOTE, Brecht 8400 Oostende (BE) CALLEWIER, Dominiek 8550 Zwevegem (BE) DEKEYZER, Kris 8200 Sint-andries (BE) (74) Representative: Chielens, Kristof et al KOB nv Patents President Kennedypark 31c 8500 Kortrijk 8500 Kortrijk (BE)