(19)

(11)

EP 3 420 140 A1

(12)

(43) Date of publication: 02.01.2019 Bulletin 2019/01 (21) Application number: 17712228.0 (22) Date of filing: 20.02.2017

(51) International Patent Classification (IPC):  E02B 9/00(2006.01) (86) International application number: PCT/IB2017/050942 (87) International publication number: WO 2017/145034 (31.08.2017 Gazette 2017/35)

(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 MD (30) Priority: 25.02.2016 BE 201605137 (71) Applicant: Grutman, Ghislain 9200 Dendermonde (BE)	(72) Inventor: Grutman, Ghislain 9200 Dendermonde (BE) (74) Representative: Van hunsel, Lieven M.S.  Archimedes Patents Arenbergstraat 13 2000 Antwerpen 2000 Antwerpen (BE)