(19)

(11)

EP 4 118 266 A1

(12)

(43) Date of publication: 18.01.2023 Bulletin 2023/03 (21) Application number: 21719856.3 (22) Date of filing: 09.03.2021

(51) International Patent Classification (IPC):  E01D 4/00(2006.01) (52) Cooperative Patent Classification (CPC): E01D 4/00 (86) International application number: PCT/EP2021/055872 (87) International publication number: WO 2021/180691 (16.09.2021 Gazette 2021/37)

(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: 09.03.2020 NO 20200282 (71) Applicant: SCHJELDERUP TRONDAHL ARKITEKTER AS 4790 Lillesand (NO)	(72) Inventors: SCHJELDERUP, Stian 0566 Oslo (NO) TRONDAHL, Øystein 4790 Lillesand (NO) (74) Representative: Onsagers AS  P.O. Box 1813 Vika 0123 Oslo 0123 Oslo (NO)