(19)
(11) EP 2 871 291 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.05.2015 Bulletin 2015/21

(43) Date of publication A2:
13.05.2015 Bulletin 2015/20

(21) Application number: 14003699.7

(22) Date of filing: 03.11.2014
(51) International Patent Classification (IPC): 
E02F 3/88(2006.01)
E02F 3/92(2006.01)
 E02F 3/90(2006.01)
(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: 05.11.2013 BE 201300750

(71) Applicant: Ondernemingen Jan De Nul, naamloze vennootschap
9308 Hofstade-Aalst (BE)

(72) Inventor:
  • Dietens, Walter
    9308 Aalst-Hofstade (DE)

(74) Representative: Donné, Eddy 
Bureau M.F.J. Bockstael nv Arenbergstraat 13
2000 Antwerpen
2000 Antwerpen (BE)

   


(54) Extension piece for a cutting arm of a cutter-suction dredger and method for loosening the bed of a body of water


(57) Extension piece (10) for a raisable and lowerable cutting arm (3) of a cutter-suction dredger (1) for cutting material loose from the bed (7) of a body of water, whereby this cutting arm (3) comprises a driveshaft (20) for a cutting head (12), whereby the extension piece (10) has a first end (11) for mounting the cutting head (12) and a second end (16) for coupling to a free end (18) of the cutting arm(3), whereby the extension piece (10) is provided with a driveshaft (20) for the cutting head (12) that is arranged to be coupled to the driveshaft (20) in the cutting arm (3).







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Search report