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Class Information
Number: 175/107
Name: Boring or penetrating the earth > With below-ground tool drive prime mover > Fluid rotary type
Description: Apparatus in which said motor includes an element provided with means upon which a fluid may act to cause a nonreversing motion of said element about an axis.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7607496 |
Drilling apparatus and system for drilling wells |
Oct. 27, 2009 |
| 7562725 |
Downhole pilot bit and reamer with maximized mud motor dimensions |
Jul. 21, 2009 |
| 7552782 |
Thrust-bearing assembly |
Jun. 30, 2009 |
| 7549487 |
Mandrel and bearing assembly for downhole drilling motor |
Jun. 23, 2009 |
| 7523792 |
Method and apparatus for shifting speeds in a fluid-actuated motor |
Apr. 28, 2009 |
| 7500787 |
Bearing assembly for downhole mud motor |
Mar. 10, 2009 |
| 7497279 |
Jack element adapted to rotate independent of a drill bit |
Mar. 3, 2009 |
| 7451835 |
Downhole turbine |
Nov. 18, 2008 |
| 7448455 |
Turbodrill with asymmetric stator and rotor vanes |
Nov. 11, 2008 |
| 7424922 |
Rotary valve for a jack hammer |
Sep. 16, 2008 |
| 7416034 |
Drive system |
Aug. 26, 2008 |
| 7405998 |
Method and apparatus for generating fluid pressure pulses |
Jul. 29, 2008 |
| 7389832 |
Hydrostatic mechanical seal with local pressurization of seal interface |
Jun. 24, 2008 |
| 7383898 |
Inner and outer motor with eccentric stabilizer |
Jun. 10, 2008 |
| 7360609 |
Directional drilling apparatus |
Apr. 22, 2008 |
| 7353887 |
Control systems and methods for active controlled bottomhole pressure systems |
Apr. 8, 2008 |
| 7318489 |
Hydraulic motor arrangement and method of operating a hydraulic motor |
Jan. 15, 2008 |
| 7314100 |
System for use in a bore hole for axially coupling a tubular end and a mandrel |
Jan. 1, 2008 |
| 7306059 |
Thrust bearing assembly |
Dec. 11, 2007 |
| 7306031 |
Tubing string rotator and method |
Dec. 11, 2007 |
| 7303007 |
Method and apparatus for transmitting sensor response data and power through a mud motor |
Dec. 4, 2007 |
| 7299886 |
Stabilized down hole drilling motor |
Nov. 27, 2007 |
| 7290625 |
Reverse-circulation drilling method and system |
Nov. 6, 2007 |
| 7287607 |
Directional drilling apparatus |
Oct. 30, 2007 |
| 7243740 |
Filter assembly having a bypass passageway and method |
Jul. 17, 2007 |
| 7234545 |
Self-blocking safety device |
Jun. 26, 2007 |
| 7225889 |
Downhole motor locking assembly and method |
Jun. 5, 2007 |
| 7226279 |
Gerotor mechanism for a screw hydraulic machine |
Jun. 5, 2007 |
| 7222682 |
Chain drive system |
May. 29, 2007 |
| 7204326 |
Drilling turbine |
Apr. 17, 2007 |
| 7201238 |
Low friction face sealed reaction turbine rotors |
Apr. 10, 2007 |
| 7188685 |
Hybrid rotary steerable system |
Mar. 13, 2007 |
| 7182157 |
Enlarging well bores having tubing therein |
Feb. 27, 2007 |
| 7178611 |
System and method for directional drilling utilizing clutch assembly |
Feb. 20, 2007 |
| 7174975 |
Control systems and methods for active controlled bottomhole pressure systems |
Feb. 13, 2007 |
| 7172039 |
Down-hole vane motor |
Feb. 6, 2007 |
| 7168510 |
Electrical transmission apparatus through rotating tubular members |
Jan. 30, 2007 |
| 7152698 |
Downhole motor locking assembly and method |
Dec. 26, 2006 |
| 7114581 |
Active controlled bottomhole pressure system & method |
Oct. 3, 2006 |
| 7086486 |
Flow control valve and method of controlling rotation in a downhole tool |
Aug. 8, 2006 |
| 7083008 |
Apparatus and method for pressure-compensated telemetry and power generation in a borehole |
Aug. 1, 2006 |
| 7063175 |
Method and apparatus for retaining a down-hole fluid motor and bit assembly |
Jun. 20, 2006 |
| 7055629 |
Inverted motor for drilling rocks, soils and man-made materials and for re-entry and cleanout of existing wellbores and pipes |
Jun. 6, 2006 |
| 6962213 |
Sleeve piston fluid motor |
Nov. 8, 2005 |
| 6962214 |
Rotary seal for directional drilling tools |
Nov. 8, 2005 |
| 6920946 |
Inverted motor for drilling rocks, soils and man-made materials and for re-entry and cleanout of existing wellbores and pipes |
Jul. 26, 2005 |
| 6854953 |
Speed governor |
Feb. 15, 2005 |
| 6839989 |
Drilling apparatus for hard ground |
Jan. 11, 2005 |
| 6827160 |
Downhole mud motor |
Dec. 7, 2004 |
| 6796390 |
Method and device for moving a tube in a borehole in the ground |
Sep. 28, 2004 |
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