(19)

(11)

EP 3 237 706 A2

(12)

(88) Date of publication A3: 03.11.2016 (43) Date of publication: 01.11.2017 Bulletin 2017/44 (21) Application number: 15877378.8 (22) Date of filing: 23.12.2015

(51) International Patent Classification (IPC):  E04H 4/14(2006.01) E04H 4/00(2006.01) (86) International application number: PCT/BE2015/000070 (87) International publication number: WO 2016/112436 (21.07.2016 Gazette 2016/29)

(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: 24.12.2014 BE 201400855 (71) Applicant: Artabel Engineering BVBA 3001 Heverlee (BE)	(72) Inventor: DE WIT, Jan Luc G 3001 Heverlee (BE) (74) Representative: Office Kirkpatrick  Avenue Wolfers, 32 1310 La Hulpe 1310 La Hulpe (BE)