(19)

(11)

EP 3 397 824 A1

(12)

(43) Date of publication: 07.11.2018 Bulletin 2018/45 (21) Application number: 16826776.3 (22) Date of filing: 23.12.2016

(51) International Patent Classification (IPC):  E04C 2/42(2006.01) E04F 21/20(2006.01) E04F 15/12(2006.01) E04F 15/02(2006.01) E01D 19/12(2006.01) E04F 21/04(2006.01) (86) International application number: PCT/IB2016/057980 (87) International publication number: WO 2017/115254 (06.07.2017 Gazette 2017/27)

(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: 30.12.2015 BE 201505851 (71) Applicant: Staenis BVBA 9870 Olsene (BE)	(72) Inventor: VERSTAEN, Tom 9870 Olsene (BE) (74) Representative: Cardoen, Annelies Andréa C. et al KOB NV President Kennedypark 31c 8500 Kortrijk 8500 Kortrijk (BE)