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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:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 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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