(19)

(11)

EP 3 938 587 A1

(12)

(43) Date of publication: 19.01.2022 Bulletin 2022/03 (21) Application number: 20712494.2 (22) Date of filing: 13.03.2020

(51) International Patent Classification (IPC):  E04B 1/348(2006.01) (52) Cooperative Patent Classification (CPC): E04B 1/24; E04B 1/3483; E04B 2001/2481; E04B 2001/2484; E04B 2001/2466 (86) International application number: PCT/EP2020/056925 (87) International publication number: WO 2020/183002 (17.09.2020 Gazette 2020/38)

(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: 13.03.2019 DK PA201970162 (71) Applicant: Kvadratum ApS 3140 Ålsgårde (DK)	(72) Inventor: HAMMEKEN, Jakob Frank 7100 Vejle (DK) (74) Representative: Aera A/S  Niels Hemmingsens Gade 10, 5th Floor 1153 Copenhagen K 1153 Copenhagen K (DK)