Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Construction
Class Information
Number: 175/93
Name: Boring or penetrating the earth > With below-ground tool drive prime mover > Below-ground (1) generation of motive fluid, or (2) storage of motivating energy
Description: Apparatus in which (1) the motor is fluid operated, and means are provided within the borehole for generating or imparting energy to the motive fluid, (2) means are provided within the borehole for storing a source of motivating energy for operating the motor.










Patents under this class:

Patent Number Title Of Patent Date Issued
8459377 Downhole drive force generating tool Jun. 11, 2013
8322463 Down hole multiple piston tools operated by pulse generation tools and methods for drilling Dec. 4, 2012
7814993 Downhole power generator and method Oct. 19, 2010
7562725 Downhole pilot bit and reamer with maximized mud motor dimensions Jul. 21, 2009
7549487 Mandrel and bearing assembly for downhole drilling motor Jun. 23, 2009
7404458 Rotary percussive drilling device Jul. 29, 2008
7159676 Fluid distributor device for down-hole-drills Jan. 9, 2007
7040417 Drilling systems May. 9, 2006
6959760 Downhole pulser Nov. 1, 2005
6910542 Acoustic flow pulsing apparatus and method for drill string Jun. 28, 2005
6702045 Drilling apparatus Mar. 9, 2004
6568485 Stalled motor by-pass valve May. 27, 2003
6516897 Self-contained excavator and anchor apparatus and method Feb. 11, 2003
6464023 Hydraulic in-the-hole percussion rock drill Oct. 15, 2002
6374924 Downhole drilling apparatus Apr. 23, 2002
6293357 Hydraulic in-the-hole percussion rock drill Sep. 25, 2001
6073708 Downhole mud pressure intensifier Jun. 13, 2000
6050349 Hydraulic system for mud pulse generation Apr. 18, 2000
5984026 Pressure converter Nov. 16, 1999
5941325 Pressure converter (B) Aug. 24, 1999
5934392 Pressure converter Aug. 10, 1999
5890547 Pressure converter Apr. 6, 1999
5662180 Percussion drill assembly Sep. 2, 1997
5577564 Rotary fluid converter Nov. 26, 1996
5375671 Converter group and pressure converter for use therein Dec. 27, 1994
5361857 Pressure converter Nov. 8, 1994
5267622 Impact block assembly for percussion drilling apparatus Dec. 7, 1993
5246080 High pressure converter for deep well drilling Sep. 21, 1993
4928775 Downhole surge valve for earth boring apparatus May. 29, 1990
4883133 Combustion operated drilling apparatus Nov. 28, 1989
4711309 Drilling apparatus Dec. 8, 1987
4531593 Substantially self-powered fluid turbines Jul. 30, 1985
4515225 Mud energized electrical generating method and means May. 7, 1985
4483394 Hydraulic power unit for measurement while drilling apparatus Nov. 20, 1984
4462469 Fluid motor and telemetry system Jul. 31, 1984
4431064 Hydraulic drive apparatus for downhole tools providing rotational and translational motion Feb. 14, 1984
4378850 Hydraulic fluid supply apparatus and method for a downhole tool Apr. 5, 1983
4371958 Drilling orientation tool Feb. 1, 1983
4278136 Sinkerdrill Jul. 14, 1981
4256191 Intermittent high-drag oil well drilling methods and apparatus Mar. 17, 1981
4226285 Magnetic junk retriever Oct. 7, 1980
4211292 Borehole angle control by gage corner removal effects Jul. 8, 1980
4211291 Drill fluid powered hydraulic system Jul. 8, 1980
RE30246 Methods and apparatus for driving a means in a drill string while drilling Apr. 1, 1980
4147223 Logging-while-drilling apparatus Apr. 3, 1979
4098359 Hydraulically operated downhole motor Jul. 4, 1978
4051909 Turbine drill for drilling at great depths Oct. 4, 1977
4004642 Tround terra-drill processes and apparatus Jan. 25, 1977
3934659 Apparatus for drilling holes in earth surface Jan. 27, 1976











 
 
  Recently Added Patents
Wide viewing angle indicators for network devices
Pet urn enclosure
Display apparatus, control method thereof, and program
Apparatus for touch screen avionic device
Integrated circuit packaging system with an encapsulation and method of manufacture thereof
Tractor
Fusing device to prevent overheating of a heating member and image forming apparatus having the same
  Randomly Featured Patents
Cultivator tine
Process for the preparation of halogenated polyethers
System and method for CSCF entity disaster tolerance and load balancing
Bicycle shift device having a linearly sliding shift lever operated by a pivoting cover
Method and apparatus for identifying objects using compound signal and a detector employing an electrical static coupling technique
Process for the manufacture of a forged connecting rod
Flare compensation circuit for television
Process for producing high trans low vinyl conjugated diene (co)polymer
Window construction
Semiconductor device and method for fabricating the same