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(11)

EP 2 553 175 A1

(12)

(43) Date of publication: 06.02.2013 Bulletin 2013/06 (21) Application number: 10711680.8 (22) Date of filing: 30.03.2010

(51) International Patent Classification (IPC):  E02D 5/18(2006.01) E02D 19/18(2006.01) E02D 17/13(2006.01) E02D 29/16(2006.01) (86) International application number: PCT/EP2010/054178 (87) International publication number: WO 2011/120557 (06.10.2011 Gazette 2011/40)

(84) Designated Contracting States: 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 SE SI SK SM TR (71) Applicant: VSL International AG 3098 Köniz (CH)	(72) Inventors: DELETANG, Alain F-49160 Blou (FR) CHAN, Ping Cheung Hong Kong (CN) HAYE, Olivier F-49400 Bagneux (FR) (74) Representative: Scheuzger, Beat Otto  Bovard AG Patent- und Markenanwälte Optingenstrasse 16 3000 Bern 25 3000 Bern 25 (CH)