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Class Information
Number: 175/345
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > Noncutting portion forwardly of rolling cutter (e.g., reamer) > Longitudinal axis cutter
Description: Apparatus in which the rolling cutter element is mounted on the bit head on an axis which extends in the same general direction as the axis of the bit.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7090034 |
Reamer having toroidal crusher body and method of use |
Aug. 15, 2006 |
| 6109374 |
Roller stabilizer |
Aug. 29, 2000 |
| 4792000 |
Method and apparatus for well drilling |
Dec. 20, 1988 |
| 4700789 |
Device to obtain ring-shaped cavities in the bottom of drilled holes made in any type of medium |
Oct. 20, 1987 |
| 4262759 |
Combination seal and pressure relief valve for sealed drill string unit |
Apr. 21, 1981 |
| 4254839 |
Radial force anti-extrusion device for sealed drill string unit |
Mar. 10, 1981 |
| 4020910 |
Sealing between relatively rotating members in boring apparatus |
May. 3, 1977 |
| 4013325 |
Drill rod stabilizing tool |
Mar. 22, 1977 |
| 3982594 |
Eccentric stabilizer |
Sep. 28, 1976 |
| 3977481 |
Boring apparatus |
Aug. 31, 1976 |
| 3945447 |
Boring apparatus |
Mar. 23, 1976 |
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