Drilling device and method for producing a borehole
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United States of America Patent
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Jun 28, 2016
Grant Date -
Jun 5, 2014
app pub date -
Dec 2, 2013
filing date -
Dec 4, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a drilling device for producing a borehole in the ground with a drilling tool driven in a rotating manner for removing ground material and a container for receiving the removed ground material, wherein the container has a lower feed opening, through which the removed ground material can be introduced into the container. It is envisaged that the drilling tool comprises at least one drill flight arranged below the container and that in an inlet area to the container between the drill flight and the feed opening an inlet section is provided, the pitch of which is increased with respect to a pitch of the drill flight.
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