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(11)

EP 2 422 019 A1

(12)

(43) Date of publication: 29.02.2012 Bulletin 2012/09 (21) Application number: 10714310.9 (22) Date of filing: 22.04.2010

(51) International Patent Classification (IPC):  E02F 3/88(2006.01) E02F 3/90(2006.01) E02F 7/04(2006.01) (86) International application number: PCT/EP2010/055329 (87) International publication number: WO 2010/122093 (28.10.2010 Gazette 2010/43)

(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 (30) Priority: 22.04.2009 BE 200900253 (71) Applicant: Dredging International N.V. 2070 Zwijndrecht (BE)	(72) Inventors: VAN NIEUWENHUIJZEN, Erik NL-4675 RE Sint-Philipsland (NL) VAN DEN BROECK, Mark B-9310 Aalst (BE) (74) Representative: Brouwer, Hendrik Rogier  Patentwerk B.V. P.O. Box 1514 5200 BN 's-Hertogenbosch 5200 BN 's-Hertogenbosch (NL)