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Class Information
Number: 175/101
Name: Boring or penetrating the earth > With below-ground tool drive prime mover > With positive connection between tool and support shaft for rotary below ground motor
Description: Apparatus in which the motor is a rotary type motor supported by a rotatable shaft extending into the bore, and in addition to the motor is a means provided for connecting said rotatable support shaft to the tool in a driving relationship.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8640793 Dynamic steering tool Feb. 4, 2014
8616303 Helical drilling apparatus, systems, and methods Dec. 31, 2013
8157025 Adjustable angle drive connection for a downhole drilling motor Apr. 17, 2012
8025110 Motor shaft security apparatus Sep. 27, 2011
8006783 Helical drilling apparatus, systems, and methods Aug. 30, 2011
7946361 Flow operated orienter and method of directional drilling using the flow operated orienter May. 24, 2011
7810586 Sectional drive and coupling system Oct. 12, 2010
7735581 Locking clutch for downhole motor Jun. 15, 2010
7624819 Universal joint assembly Dec. 1, 2009
7445059 Drill string deflecting apparatus Nov. 4, 2008
7377337 Downhole drilling tool May. 27, 2008
7275605 Rotatable drill shoe Oct. 2, 2007
7252150 Downhole tool Aug. 7, 2007
7201239 Power-generating device for use in drilling operations Apr. 10, 2007
7036580 Downhole motor lock-up tool May. 2, 2006
6997811 Sealed flexible motor coupling Feb. 14, 2006
6945338 Drilling bit assembly and apparatus Sep. 20, 2005
6940245 Downhole compressor system with a feedback sensor Sep. 6, 2005
6857486 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles Feb. 22, 2005
6672409 Downhole generator for horizontal directional drilling Jan. 6, 2004
6364038 Downhole flexible drive system Apr. 2, 2002
6364034 Directional drilling apparatus Apr. 2, 2002
6230823 Downhole motor May. 15, 2001
6196336 Method and apparatus for drilling boreholes in earth formations (drilling liner systems) Mar. 6, 2001
6102138 Pressure-modulation valve assembly Aug. 15, 2000
6041874 Tubular actuator component for use in a drill string Mar. 28, 2000
5899281 Adjustable bend connection and method for connecting a downhole motor to a bit May. 4, 1999
5857531 Bottom hole assembly for directional drilling Jan. 12, 1999
5853053 Stabilization devices for drill motors Dec. 29, 1998
5845722 Method and apparatus for drilling boreholes in earth formations (drills in liner systems) Dec. 8, 1998
5836407 Articulated tool for drilling oil, gas geothermal wells Nov. 17, 1998
5673764 Drill string orienting motor Oct. 7, 1997
5671816 Swivel/tilting bit crown for earth-boring drills Sep. 30, 1997
5515918 Method of consolidating a slurry in a borehole May. 14, 1996
5503236 Swivel/tilting bit crown for earth-boring drills Apr. 2, 1996
5495900 Drill string deflection sub Mar. 5, 1996
5479995 Adjustable orienting sub Jan. 2, 1996
5472057 Drilling with casing and retrievable bit-motor assembly Dec. 5, 1995
5452772 Apparatus for steering the foremost part of the drillpipe Sep. 26, 1995
5375671 Converter group and pressure converter for use therein Dec. 27, 1994
5135059 Borehole drilling motor with flexible shaft coupling Aug. 4, 1992
5094305 Orientatable adjustable bent sub Mar. 10, 1992
5086851 Combination thrust and radial bearing for use in down-hole drilling tools Feb. 11, 1992
5048622 Hermetically sealed progressive cavity drive train for use in downhole drilling Sep. 17, 1991
5022471 Deviated wellbore drilling system and apparatus Jun. 11, 1991
4969528 Method and apparatus for continuous pilot hole coring Nov. 13, 1990
4842081 Simultaneous drilling and casing device Jun. 27, 1989
4796713 Activated earth drill Jan. 10, 1989
4427079 Intermittently rotatable down hole drilling tool Jan. 24, 1984
4386666 In-hole motor drill with locking bit clutch Jun. 7, 1983

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