Orientation device for a core sample
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United States of America Patent
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-
Nov 20, 2007
Grant Date -
Feb 17, 2005
app pub date -
Nov 1, 2002
filing date -
Nov 2, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
Core orientator for a core drill includes a face orientator and a bottom orientator supported by a shaft which extends into a shroud. A tubular extension is coupled to the shroud and is slidably coupled to a main body. The main body includes first and second latches. The first latches releasably lock the device to a core lifter case assembly disposed within the core drill, to selectively prevent the device from advancing in an uphole direction within the core drill. The latching system operates to prevent the device from falling out of the core drill. Face orientator includes a plurality of pins which can move axially to provide a plurality of profile reference points to a facing surface of a hole to be drilled. The bottom orientator includes a plurality of balls disposed within respective braces.
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