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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:
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Patent Number Title Of Patent Date Issued
8342267 Mining machine with improved rib reach capability and method of use thereof Jan. 1, 2013
8327953 Drilling tool with feed control Dec. 11, 2012
8307917 Downhole injector system for CT and wireline drilling Nov. 13, 2012
8302682 Wireline tractor device Nov. 6, 2012
8240397 Method to control bit load Aug. 14, 2012
8061441 Autonomous excavating apparatus Nov. 22, 2011
7934563 Inverted drainholes and the method for producing from inverted drainholes May. 3, 2011
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
6758289 Method and apparatus for hydrocarbon subterranean recovery Jul. 6, 2004
6758279 Puller-thruster downhole tool 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

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