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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:

Class Number Class Name Patents
175/347 Removable axle or bushing 16
175/346 Separable support for cutter axle 18


Patents under this class:

Patent Number Title Of Patent Date Issued
8397838 Rotary roller reamer Mar. 19, 2013
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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