(19)

(11)

EP 3 638 474 A1

(12)

(43) Date of publication: 22.04.2020 Bulletin 2020/17 (21) Application number: 18738014.2 (22) Date of filing: 07.06.2018

(51) International Patent Classification (IPC):  B28B 23/00(2006.01) E02B 3/12(2006.01) (86) International application number: PCT/NL2018/050373 (87) International publication number: WO 2018/231050 (20.12.2018 Gazette 2018/51)

(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: 14.06.2017 NL 1042427 (71) Applicant: ABS Infradvies B.V. 8102 ME Raalte (NL)	(72) Inventor: BRUINS SLOT, Albert 8102 ME Raalte (NL) (74) Representative: Ferguson, Alexander  Octrooibureau Ferguson BV P.O. Box 970 3800 AZ Amersfoort 3800 AZ Amersfoort (NL)