(19)

(11)

EP 3 724 418 A1

(12)

(43) Date of publication: 21.10.2020 Bulletin 2020/43 (21) Application number: 18833319.9 (22) Date of filing: 13.12.2018

(51) International Patent Classification (IPC):  E04F 13/08(2006.01) E04B 9/04(2006.01) (86) International application number: PCT/IB2018/060014 (87) International publication number: WO 2019/116301 (20.06.2019 Gazette 2019/25)

(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: 13.12.2017 BE 201705928 (71) Applicant: Build Tech IP 3000 Leuven (BE)	(72) Inventor: MICHEL, Yves 3320 Meldert (BE) (74) Representative: Chielens, Kristof et al KOB nv Patents President Kennedypark 31c 8500 Kortrijk 8500 Kortrijk (BE)