Tilted drive sub
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United States of America Patent
Stats
-
Mar 27, 2012
Grant Date -
Jan 28, 2010
app pub date -
Jul 21, 2009
filing date -
Jul 22, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tilted drive sub is disclosed with a center line of the internal diameter (ID) offset at an angle from the center line of the outer diameter (OD) starting at a point near to a top end of the tilted drive sub. This results in the ID being at an angle to the OD, with the OD of the tilted drive sub remaining straight. The offset ID has the same threads of a mud motor without a tilted drive sub. The tilted drive sub replaces the outer bearing housing of a normal performance mud motor.
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