Method and apparatus for forming bored hole
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 24, 2008
Grant Date -
May 25, 2006
app pub date -
May 20, 2003
filing date -
May 29, 2002
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and apparatus for creating a reamed hole below the surface are disclosed. The reaming apparatus is arranged to be connected to one or more boring stems and has an interior section and an exterior section. The interior section is rotatable independently of the exterior section. Reamed holes of various cross-sections can be produced by appropriate selection of the cross-section of the exterior section.
First Claim
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