(19)

(11)

EP 3 341 535 A1

(12)

(43) Date of publication: 04.07.2018 Bulletin 2018/27 (21) Application number: 16762741.3 (22) Date of filing: 23.08.2016

(51) International Patent Classification (IPC):  E04C 5/18(2006.01) E04C 5/065(2006.01) (86) International application number: PCT/EP2016/069875 (87) International publication number: WO 2017/032767 (02.03.2017 Gazette 2017/09)

(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: 25.08.2015 BE 201505529 (71) Applicant: Intersig NV 9200 Dendermonde (BE)	(72) Inventor: VAN DEN BROECKE, Hugo 9200 Dendermonde (BE) (74) Representative: De Clercq & Partners  Edgard Gevaertdreef 10a 9830 Sint-Martens-Latem 9830 Sint-Martens-Latem (BE)