(19)

(11)

EP 3 924 591 A1

(12)

(43) Date of publication: 22.12.2021 Bulletin 2021/51 (21) Application number: 20705262.2 (22) Date of filing: 11.02.2020

(51) International Patent Classification (IPC):  E06B 3/972(2006.01) E06B 3/98(2006.01) (52) Cooperative Patent Classification (CPC): E06B 3/972; E06B 3/98 (86) International application number: PCT/IB2020/051082 (87) International publication number: WO 2020/165762 (20.08.2020 Gazette 2020/34)

(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: 14.02.2019 BE 201905098 (71) Applicant: Reynaers Aluminium, naamloze vennootschap 2570 Duffel (BE)	(72) Inventor: EISMA, Jelmer 2000 Antwerp (BE) (74) Representative: Donné, Eddy et al Bureau M.F.J. Bockstael nv. Arenbergstraat 13 2000 Antwerpen 2000 Antwerpen (BE)