(19)

(11)

EP 2 776 627 A1

(12)

(43) Date of publication: 17.09.2014 Bulletin 2014/38 (21) Application number: 12794162.3 (22) Date of filing: 22.10.2012

(51) International Patent Classification (IPC):  E01B 3/46(2006.01) (86) International application number: PCT/BE2012/000046 (87) International publication number: WO 2013/082679 (13.06.2013 Gazette 2013/24)

(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 (30) Priority: 21.10.2011 BE 201100616 (71) Applicant: CDM N.V. 3090 Overijse (BE)	(72) Inventor: CARELS, Patrick B-3090 Overijse (BE) (74) Representative: Callewaert, Raf  Bureau Callewaert Brusselsesteenweg 108 3090 Overijse 3090 Overijse (BE)