Reamer and methods for directional drilling
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United States of America Patent
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Jun 8, 2010
Grant Date -
Dec 31, 2009
app pub date -
Aug 7, 2008
filing date -
Jun 27, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A reamer for underground boring is provided. The reamer includes at least: (a) a center mandrel, wherein the center mandrel defines a mandrel axis; (b) a plurality of radial members extending radially from the center mandrel; (c) a plurality of cutting heads, wherein each of the cutting heads: (i) is supported by at least one of the radial members; (ii) is arcuately spaced-apart around the center mandrel from the other cutting heads; (iii) has a rounded surface; and (d) a plurality of cutting teeth on the rounded surface of each of the cutting heads. A method of horizontal drilling with the reamer is also provided.
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