(19)

(11)

EP 3 420 155 A1

(12)

(43) Date of publication: 02.01.2019 Bulletin 2019/01 (21) Application number: 17708424.1 (22) Date of filing: 24.02.2017

(51) International Patent Classification (IPC):  E04D 13/03(2006.01) (86) International application number: PCT/DK2017/050048 (87) International publication number: WO 2017/144064 (31.08.2017 Gazette 2017/35)

(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: MA MD (30) Priority: 26.02.2016 DK 201670115 (71) Applicant: VKR Holding A/S 2970 Hørsholm (DK)	(72) Inventor: BLICHFELDT, Asbjørn Skyum 8300 Odder (DK) (74) Representative: AWA Denmark A/S  Strandgade 56 1401 Copenhagen K 1401 Copenhagen K (DK)