(19)

(11)

EP 4 007 717 A1

(12)

(43) Date of publication: 08.06.2022 Bulletin 2022/23 (21) Application number: 20743152.9 (22) Date of filing: 24.07.2020

(51) International Patent Classification (IPC):  B63B 1/10(2006.01) E21B 7/128(2006.01) B63B 1/04(2006.01) B63B 35/44(2006.01) E21B 19/00(2006.01) (52) Cooperative Patent Classification (CPC): B63B 1/107; B63B 2001/044; B63B 35/4413; E21B 7/128; E21B 19/002; E21B 19/004 (86) International application number: PCT/EP2020/070982 (87) International publication number: WO 2021/023528 (11.02.2021 Gazette 2021/06)

(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: 02.08.2019 NL 2023601 (71) Applicant: Itrec B.V. 3115 HH Schiedam (NL)	(72) Inventors: WIJNING, Dhr. Diederick Bernardus 3115 HH SCHIEDAM (NL) ROODENBURG, David 3115 HH SCHIEDAM (NL) (74) Representative: EP&C  P.O. Box 3241 2280 GE Rijswijk 2280 GE Rijswijk (NL)