(19)

(11)

EP 3 137 689 A1

(12)

(43) Date of publication: 08.03.2017 Bulletin 2017/10 (21) Application number: 15729253.3 (22) Date of filing: 04.05.2015

(51) International Patent Classification (IPC):  E02D 29/02(2006.01) (86) International application number: PCT/NL2015/050309 (87) International publication number: WO 2015/167341 (05.11.2015 Gazette 2015/44)

(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: MA (30) Priority: 02.05.2014 NL 2012739 (71) Applicant: Netics B.V. 2952 AD Alblasserdam (NL)	(72) Inventors: BESSELING, Eldert NL-2952 AD Alblasserdam (NL) EKKELENKAMP, Hugo Hendrikus Martinus NL-2952 AD Alblasserdam (NL) (74) Representative: Nederlandsch Octrooibureau  P.O. Box 29720 2502 LS The Hague 2502 LS The Hague (NL)