Excavating – Self-loading vehicle – Having endless digger or conveyor
Patent
1998-04-28
2000-09-05
Shackelford, H.
Excavating
Self-loading vehicle
Having endless digger or conveyor
37321, 37324, E02F 392
Patent
active
061124397
ABSTRACT:
A suction dredge for the planned taking up of suction material, particularly for excavating soil from underground pipes, has a pneumatic suction hose for taking up the suction material and at whose lower end is provided a suction stub. At its opposite, upper end the suction hose issues into a collecting tank. To simplify the handling of the suction stub, it is provided with a guide body fitted to the suction hose and a suction nozzle axially movable relative thereto and which by means of a drive mechanism can be retracted into and extended from the guide body. As a result the stroke frequency of the suction nozzle and/or its stroke length and/or the impact energy on the soil can be adjusted.
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