(19)

(11)

EP 3 004 462 A1

(12)

(43) Date of publication: 13.04.2016 Bulletin 2016/15 (21) Application number: 14728161.2 (22) Date of filing: 30.05.2014

(51) International Patent Classification (IPC):  E01D 19/14(2006.01) E01D 21/00(2006.01) E01D 19/16(2006.01) E04C 5/12(2006.01) (86) International application number: PCT/EP2014/061295 (87) International publication number: WO 2014/191568 (04.12.2014 Gazette 2014/49)

(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 (30) Priority: 31.05.2013 GB 201309791 24.12.2013 WO PCT/EP2013/077969 (71) Applicant: VSL International AG 3098 Köniz (CH)	(72) Inventors: ANNAN, Rachid CH-3255 Rapperswil (CH) GNÄGI, Adrian CH-3012 Bern (CH) (74) Representative: P&TS SA (AG, Ltd.)  Av. J.-J. Rousseau 4 P.O. Box 2848 2001 Neuchâtel 2001 Neuchâtel (CH)