(19)

(11)

EP 4 031 708 A1

(12)

(43) Date of publication: 27.07.2022 Bulletin 2022/30 (21) Application number: 20780370.1 (22) Date of filing: 21.09.2020

(51) International Patent Classification (IPC):  D21G 1/00(2006.01) D21G 9/00(2006.01) D21G 1/02(2006.01) (52) Cooperative Patent Classification (CPC): D21G 1/0066; D21G 1/0286; D21G 1/0266; D21G 9/0045 (86) International application number: PCT/NL2020/050581 (87) International publication number: WO 2021/054832 (25.03.2021 Gazette 2021/12)

(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: 19.09.2019 NL 2023856 (71) Applicant: Ing. Gerritse Holding B.V. 6971 BV Brummen (NL)	(72) Inventor: GERRITSE, Jan 6971 BV Brummen (NL) (74) Representative: Arnold & Siedsma  Bezuidenhoutseweg 57 2594 AC The Hague 2594 AC The Hague (NL)