DRILLING APPARATUS
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United States of America Patent
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Issued Date -
Sep 18, 2014
app pub date -
Mar 12, 2013
filing date -
Mar 12, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A drilling apparatus includes a percussive member configured to generate impact waves, a striking bar configured to receive impact waves from the percussive member, a rotation section at least partly enclosing the striking bar, a flushing section detachably connected to the rotation section, and a vibration isolator attached to the flushing section. The rotation section includes a bearing configured to support the striking bar. Further, the flushing section includes an inlet passage configured to receive a flushing medium.
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