|
2011
|
Invention
|
Auto-centering structural bearing. An auto-centering structural bearing transfers vertical loads ... |
|
2009
|
Invention
|
Mechanism for providing controllable angular orientation while transmitting torsional load. A mec... |
|
|
Invention
|
Method and apparatus for controlling downhole rotational rate of a drilling tool. A downhole rota... |
|
2008
|
Invention
|
Drive shaft assembly for a downhole motor. A drive shaft assembly for a downhole motor includes a... |
|
1998
|
Invention
|
Method and apparatus for creating positive pressure in a speed reduction tool used with a drillin... |
|
1995
|
Invention
|
Two way hydraulic drilling jar. A two way hydraulic drilling jar which includes a tubular housing... |
|
|
Invention
|
Valve for a two way hydraulic drilling jar. A two way hydraulic drilling jar which includes a tub... |
|
1993
|
Invention
|
Sealed bearing assembly used in earth drilling. A sealed bearing assembly used in earth drilling ... |
|
|
Invention
|
Sealed bearing assembly used in earth drilling.
A sealed bearing assembly used in ear... |
|
1992
|
Invention
|
A downhole bearing assembly.
ABSTRACT OF THE DISCLOSURE
A bearing assembly is de... |
|
|
Invention
|
A downhole bearing assembly.
ABSTRACT OF THE DISCLOSURE
An improvement in bearin... |
|
|
Invention
|
Tubular handling system.
A pipe handling system to move the tubulars
used from a ... |
|
1991
|
Invention
|
Flow restrictor for mud lubricated earth drilling motors.
A flow restrictor for a mud... |
|
|
Invention
|
Sealing system for a sealed bearing assembly. An improved sealing system for a sealed bearing ass... |
|
|
Invention
|
Adjustable bent housing.
An adjustable bent housing consisting of three tubular
m... |
|
|
Invention
|
Valve used in a hydraulic drilling jar. An improvement in a valve used in a hydraulic drilling ja... |
|
|
Invention
|
Sealing system for a sealed bearing assembly used in earth drilling.
An improved seal... |
|
1990
|
Invention
|
Valve used in a hydraulic drilling jar.
An improvement in a valve used in a hydraulic... |
