Auger having interchangeable cutting heads and method of using the same
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United States of America Patent
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Mar 2, 2010
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N/A
app pub date -
Jun 25, 2007
filing date -
Jun 25, 2007
priority date (Note) -
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Abstract
An auger generally comprising a shaft having flighting which is helically wound around the shaft to convey spoil to the surface of the area being excavated. The shaft has a first end and a second end. The shaft first end is adapted to be combined with and rotated by a drilling machine. The shaft second end is adapted to be removably combined with a boring head and one or more drilling elements to bore through the ground. The invention comprises two interchangeable boring heads. A first boring head is adapted to drill through soft ground conditions such as dirt or clay and a second boring head adapted to drill through hard ground conditions such as rock.
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