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EP 3 769 396 A1

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(43) Date of publication: 27.01.2021 Bulletin 2021/04 (21) Application number: 18714438.1 (22) Date of filing: 23.03.2018

(51) International Patent Classification (IPC):  H02J 7/02(2016.01) E05F 15/77(2015.01) H02J 7/00(2006.01) H02J 50/20(2016.01) E05F 15/60(2015.01) E06B 3/04(2006.01) (86) International application number: PCT/DK2018/050054 (87) International publication number: WO 2019/179582 (26.09.2019 Gazette 2019/39)

(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 (71) Applicant: VKR Holding A/S 2970 Hørsholm (DK)	(72) Inventors: LANGBO, Lars 7500 Holstebro (DK) TWARDAK, Michael 2300 Copenhagen S (DK) (74) Representative: Patentgruppen A/S  Aaboulevarden 31, 4th Floor 8000 Aarhus C 8000 Aarhus C (DK)