(19)
(11) EP 1 605 103 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
05.04.2006 Bulletin 2006/14

(43) Date of publication A2:
14.12.2005 Bulletin 2005/50

(21) Application number: 05011800.9

(22) Date of filing: 01.06.2005
(51) International Patent Classification (IPC): 
E02F 3/88(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 10.06.2004 IT PR20040041

(71) Applicant: ZARDI COSTRUZIONI di Zardi Angelo & C. S.n.c.
46010 Breda Cisoni - Sabbioneta (Mantova) (IT)

(72) Inventor:
  • Zardi, Angelo
    46017 Rivarolo Del Re Ed Uniti (Cremona) (IT)

(74) Representative: Gotra, Stefano 
BUGNION S.p.A. Largo Michele Novaro, 1/A
43100 Parma
43100 Parma (IT)

   


(54) Dredging device and apparatus


(57) A dredging device (1), comprising: at least one operative arm (2) and dredging means (3) connected to said operative arm (2) and able to be immersed in a liquid. In new and original fashion, the operative arm (2) is so shaped as to generate a hydrostatic buoyancy whose value is just lower than the sum of the weights of the arm and of the dredging means (3), so that the dredging means are immersed deep into the liquid by effect of the difference between the sum of said weights and the hydrostatic buoyancy. A dredging apparatus (50) comprising a self-propelled machine (52) having at least one mechanical arm (51) whereto is connected a dredging device (1).







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