(19)

(11)

EP 3 983 128 A1

(12)

(43) Date of publication: 20.04.2022 Bulletin 2022/16 (21) Application number: 19731701.9 (22) Date of filing: 14.06.2019

(51) International Patent Classification (IPC):  B02C 18/06(2006.01) B02C 18/22(2006.01) B02C 18/16(2006.01) B02C 18/14(2006.01) B02C 19/00(2006.01) (52) Cooperative Patent Classification (CPC): B02C 18/062; B02C 18/141; B02C 18/142; B02C 18/146; B02C 2018/162; B02C 18/2266; B02C 19/0056 (86) International application number: PCT/EP2019/065768 (87) International publication number: WO 2020/249241 (17.12.2020 Gazette 2020/51)

(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 (71) Applicant: M.E.F. Beheer B.V. 8607 KH Sneek (NL)	(72) Inventor: SMIT, Willem Fredrik 8607 KH Sneek (NL) (74) Representative: Arnold & Siedsma  Bezuidenhoutseweg 57 2594 AC The Hague 2594 AC The Hague (NL)