06672409 is referenced by 54 patents and cites 6 patents.

A generator assembly for generating power in the downhole end of a drill string used to form a borehole in horizontal directional drilling. The drill string provides a fluid passageway in which the downhole generator is receivingly disposed, at least in part, to subject a rotatable turbine to a pressurized fluid flowing in the fluid passageway, thereby imparting a mechanical rotation to the turbine. The turbine is coupled to a generator so that the mechanical rotation of the turbine is transferred to a power output of the generator.

Title
Downhole generator for horizontal directional drilling
Application Number
9/695156
Publication Number
6672409 (B1)
Application Date
October 24, 2000
Publication Date
January 6, 2004
Inventor
Brent G Stephenson
Stillwater
OK, US
Matthew L Dock
Stillwater
OK, US
Agent
McKinney & Stringer P C
US
Assignee
The Charles Machine Works
OK, US
IPC
E21B 4/02
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