Excavation device
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United States of America Patent
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Apr 12, 2011
Grant Date -
Feb 4, 2010
app pub date -
Nov 13, 2007
filing date -
Nov 23, 2006
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A device for excavating and transporting material, especially earth, the device comprising an excavation appliance that can be rotated about a rotational axis (y) in a rotational direction (u), and a longitudinal conveyor for transporting the excavated material. The excavation appliance comprises an impeller having a conically extending guide surface arranged around the rotational axis (y) in a rotationally symmetrical manner, and guide vanes which radially protrude from the conical guide surface and form an acute angle in relation to the rotational axis (y).
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