Drilling unit
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United States of America Patent
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Aug 30, 2016
Grant Date -
Jan 3, 2013
app pub date -
Jun 29, 2012
filing date -
Jun 30, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a drilling unit with a carrier vehicle with a hydraulic supply, a mast, a carriage which can be moved along the mast and a hydraulic cylinder for moving the carriage which comprises a cylinder housing, in which a piston with a piston rod is mounted so that it can be displaced. The piston rod is fixed to the mast and the cylinder housing to the carriage. The carriage is connected to the hydraulic supply and comprises at least one hydraulic connection. The hydraulic cylinder is connected via the hydraulic connection on the carriage to the hydraulic supply.
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