Impact Powered Transmitter For Directional Drilling
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United States of America Patent
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app pub date -
Jun 25, 2010
filing date -
Apr 8, 2008
priority date (Note) -
Abandoned
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Abstract
A pneumatic earth boring tool includes a cylindrical body, a transmitter mounted in the body, the transmitter generating a signal usable for operating the earth boring tool, a linear generator mounted in the body for generating an electrical current to power the transmitter and a rectifier for converting the electrical current produced by the linear generator to direct current. Electrical power generated by the linear generator is used to power the transmitter to generate a signal useful for locating the tool.
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