(19)

(11)

EP 4 149 833 A1

(12)

(43) Date of publication: 22.03.2023 Bulletin 2023/12 (21) Application number: 21726591.7 (22) Date of filing: 10.05.2021

(51) International Patent Classification (IPC):  B63H 1/32(2006.01) B63H 25/38(2006.01) B63H 1/30(2006.01) B63H 1/36(2006.01) (52) Cooperative Patent Classification (CPC): B63H 1/36; B63H 1/30; B63H 25/381; B63H 25/382; B63H 25/38 (86) International application number: PCT/EP2021/062370 (87) International publication number: WO 2021/228787 (18.11.2021 Gazette 2021/46)

(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: 11.05.2020 DK PA202070303 18.11.2020 DK PA202070763 (71) Applicant: Maersk A/S 1263 Copenhagen K (DK)	(72) Inventor: AUSTIN-FRASER, Toby Charles 2100 Copenhagen (DK) (74) Representative: Aera A/S  Niels Hemmingsens Gade 10, 5th Floor 1153 Copenhagen K 1153 Copenhagen K (DK)