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Class Information
Number: 175/258
Name: Boring or penetrating the earth > Tool removable or insertable through or around driving or driven shaft or casing > Laterally shiftable cutter element movable through shaft
Description: Apparatus in which the tool comprises a laterally shiftable cutter element (as defined in subclass 263) movable through the inside of a tubular shaft.










Sub-classes under this class:

Class Number Class Name Patents
175/260 Cutter element engages torque transmitting abutment on shaft when expanded 15
175/259 Plural cutter elements longitudinally relatively movable into transverse alignment 15


Patents under this class:

Patent Number Title Of Patent Date Issued
8347987 Apparatus and method for installing ground anchoring systems Jan. 8, 2013
7367412 Collapsible rock head May. 6, 2008
7117957 Methods for drilling and lining a wellbore Oct. 10, 2006
7086485 Directional casing drilling Aug. 8, 2006
6742606 Method and apparatus for drilling and lining a wellbore Jun. 1, 2004
6604586 Drilling apparatus Aug. 12, 2003
6543552 Method and apparatus for drilling and lining a wellbore Apr. 8, 2003
6244363 Retrieval head for a drill bit composed of a plurality of bit segments Jun. 12, 2001
6206114 Tool for transporting cutting means to and from a ground drill Mar. 27, 2001
6155360 Retractable drill bit system Dec. 5, 2000
6112835 Drilling apparatus having a radially displaceable reamer Sep. 5, 2000
6059053 Retraction system for a latching mechanism of a tool May. 9, 2000
6039129 Locking system for a firing mechanism of a downhole tool Mar. 21, 2000
5785134 System for in-situ replacement of cutting means for a ground drill Jul. 28, 1998
5662182 System for in situ replacement of cutting means for a ground drill Sep. 2, 1997
5460231 Device and method for augering a conical hole in solid media Oct. 24, 1995
5186265 Retrievable bit and eccentric reamer assembly Feb. 16, 1993
5168942 Resistivity measurement system for drilling with casing Dec. 8, 1992
5111893 Device for drilling in and/or lining holes in earth May. 12, 1992
5052503 Eccentric drilling tool Oct. 1, 1991
5040621 Flushing means for drilling tools Aug. 20, 1991
4962822 Downhole drill bit and bit coupling Oct. 16, 1990
4878549 Wire line core barrel Nov. 7, 1989
4770259 Drill tool Sep. 13, 1988
4759413 Method and apparatus for setting an underwater drilling system Jul. 26, 1988
4750571 Screen placement method and apparatus Jun. 14, 1988
4545443 Means for drilling Oct. 8, 1985
4408669 Means for drilling Oct. 11, 1983
4133396 Drilling and casing landing apparatus and method Jan. 9, 1979
4083416 Collapsible cutterhead for drilling upward Apr. 11, 1978
4027490 Self-sinking, axial passage foundation pile and method Jun. 7, 1977
3955633 Drill May. 11, 1976











 
 
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