Impact Powered Transmitter For Directional Drilling

• US 20100263930A1
• Filed: 06/25/2010
• Published: 10/21/2010
• Est. Priority Date: 04/08/2008
• Status: Abandoned Application

• Current Assignee: Earth Tool Company LLC (Charles Machine Works Incorporated The)
• Original Assignee: Earth Tool Company LLC (Charles Machine Works Incorporated The)
• Inventors: Wentworth, Steven W.
• Application Number:
  US12/823,635
• Publication Number:
  US 20100263930A1
• Time in Patent Office: Days
• US Class Current: 175/45
• CPC Class Codes: E21B 4/14 Fluid operated hammers
• CPC Class Codes: E21B 41/0085 Adaptations of electric power generating means for use in boreholes
• CPC Class Codes: E21B 47/024 of devices in the borehole determining slope or direction of the borehole E21B47/022
• CPC Class Codes: E21B 47/13 by electromagnetic energy, e.g. radio frequency

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.

Claims

1. A pneumatic earth boring tool comprising:

a cylindrical body;

a transmitter mounted in the body, the transmitter generating a signal usable for operating the earth boring tool, wherein the signal generated by the transmitter comprises location, pitch and yaw information; and

a linear generator mounted in the body for generating an electrical current to power the transmitter;

wherein the generator produces the current in response to movement caused by operation of the tool.