ROTARY DRILL HEAD POSITION MEASUREMENT SYSTEM
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United States of America Patent
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N/A
Issued Date -
Nov 20, 2014
app pub date -
May 16, 2013
filing date -
May 16, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A blast hole drill machine (100) including a deck frame (102), and a mast (106) mounted on the deck frame (102) is provided. A feed cylinder (120) supported on the mast (106) and configured to move in proportion to movement of a rotary drill head (114) along the mast (106). A position magnet (202) is moveably disposed on the feed cylinder (120). A linear transducer (204) extends along the mast (106) and configured to detect a movement of the position magnet (202) indicative of a change in a position of the rotary drill head (114).
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