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Class Information
Number: 175/94
Name: Boring or penetrating the earth > With below-ground tool drive prime mover > With below-ground feed means
Description: Apparatus including means positioned within the borehole which functions to feed the tool in the boring operation with, or relative to, the tool drive means.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7293615 |
Earth boring system |
Nov. 13, 2007 |
| 7273109 |
Puller-thruster downhole tool |
Sep. 25, 2007 |
| 7185714 |
Traction control for downhole tractor |
Mar. 6, 2007 |
| 7156181 |
Puller-thruster downhole tool |
Jan. 2, 2007 |
| 7143843 |
Traction control for downhole tractor |
Dec. 5, 2006 |
| 7070359 |
Microtunneling systems and methods of use |
Jul. 4, 2006 |
| 7059417 |
Puller-thruster downhole tool |
Jun. 13, 2006 |
| 6763899 |
Deformable blades for downhole applications in a wellbore |
Jul. 20, 2004 |
| 6758279 |
Puller-thruster downhole tool |
Jul. 6, 2004 |
| 6758289 |
Method and apparatus for hydrocarbon subterranean recovery |
Jul. 6, 2004 |
| 6607607 |
Coiled tubing wellbore cleanout |
Aug. 19, 2003 |
| 6601652 |
Puller-thruster downhole tool |
Aug. 5, 2003 |
| 6293356 |
Method of and system for optimizing rate of penetration in drilling operations |
Sep. 25, 2001 |
| 6286592 |
Puller-thruster downhole tool |
Sep. 11, 2001 |
| 6192998 |
Method of and system for optimizing rate of penetration in drilling operations |
Feb. 27, 2001 |
| 6102138 |
Pressure-modulation valve assembly |
Aug. 15, 2000 |
| 6026912 |
Method of and system for optimizing rate of penetration in drilling operations |
Feb. 22, 2000 |
| 6015018 |
Method and apparatus for moving a piston |
Jan. 18, 2000 |
| 6003606 |
Puller-thruster downhole tool |
Dec. 21, 1999 |
| 5613568 |
Rock drilling machine |
Mar. 25, 1997 |
| 5370479 |
Shielding apparatus |
Dec. 6, 1994 |
| 5248896 |
Power generation from a multi-lobed drilling motor |
Sep. 28, 1993 |
| 5186264 |
Device for guiding a drilling tool into a well and for exerting thereon a hydraulic force |
Feb. 16, 1993 |
| 5031707 |
Apparatus for making holes in soil |
Jul. 16, 1991 |
| 4957175 |
Soil drilling equipment |
Sep. 18, 1990 |
| 4928775 |
Downhole surge valve for earth boring apparatus |
May. 29, 1990 |
| 4834193 |
Earth boring apparatus and method with control valve |
May. 30, 1989 |
| 4828050 |
Single pass drilling apparatus and method for forming underground arcuate boreholes |
May. 9, 1989 |
| 4770255 |
Arrangement for underwater drilling of foundations |
Sep. 13, 1988 |
| 4744425 |
Apparatus for excavating a substantially vertical slot |
May. 17, 1988 |
| 4742876 |
Submarine drilling device |
May. 10, 1988 |
| 4732226 |
Drilling machine |
Mar. 22, 1988 |
| 4697651 |
Method of drilling deviated wellbores |
Oct. 6, 1987 |
| 4646853 |
Shaft boring machine and method |
Mar. 3, 1987 |
| 4632191 |
Steering system for percussion boring tools |
Dec. 30, 1986 |
| 4618008 |
Vertical drilling method and apparatus |
Oct. 21, 1986 |
| 4616719 |
Casing lateral wells |
Oct. 14, 1986 |
| 4615401 |
Automatic hydraulic thruster |
Oct. 7, 1986 |
| 4526242 |
Drilling device |
Jul. 2, 1985 |
| 4519462 |
Cable following apparatus having cable cleaning capabilities and method |
May. 28, 1985 |
| 4494617 |
Shaft boring machine |
Jan. 22, 1985 |
| 4474253 |
Apparatus for producing an upwardly directed drill hole |
Oct. 2, 1984 |
| 4463814 |
Down-hole drilling apparatus |
Aug. 7, 1984 |
| 4436168 |
Thrust generator for boring tools |
Mar. 13, 1984 |
| 4431064 |
Hydraulic drive apparatus for downhole tools providing rotational and translational motion |
Feb. 14, 1984 |
| 4431068 |
Extended reach drilling method |
Feb. 14, 1984 |
| 4406332 |
Rotary earth boring tool |
Sep. 27, 1983 |
| 4403667 |
Cable following apparatus utilizing a releasable cable gripping mechanism |
Sep. 13, 1983 |
| 4396072 |
Method and apparatus for producing a drill hole |
Aug. 2, 1983 |
| 4385667 |
Cable reaming apparatus |
May. 31, 1983 |
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