Hollow auger head assembly
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United States of America Patent
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Oct 4, 2005
Grant Date -
Sep 9, 2004
app pub date -
Mar 12, 2004
filing date -
Jun 27, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hollow auger head assembly for penetrating geological formations that utilizes drill bit assemblies to which both blades and finger bits are attached. The method of securing the individual drill bit assemblies to the auger head reduces incidents of the drill bit assembly becoming detached from the auger head during drilling operations. Additionally, a rust-resistant attachment mechanism is used attach the drill bit assemblies to the auger head, which makes the drill bit assemblies easier to remove and replace. The configuration and arrangement of the bits improves cutting efficiency, increases wear life and reduces the likelihood of the bits breaking during operation.
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