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Class Information
Number: 175/347
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 > Removable axle or bushing
Description: Apparatus wherein the rolling cutter element is mounted on an axle or bushing which is removably fastened to the bit by a means which is readily detachable.










Patents under this class:

Patent Number Title Of Patent Date Issued
8347989 Hole opener with hybrid reaming section and method of making Jan. 8, 2013
7942217 Cutting apparatus for a microtunnelling system May. 17, 2011
7308956 Method of securing a rotary cutter to a body of a down hole tool and a rotary cutter assembly Dec. 18, 2007
6527066 Hole opener with multisized, replaceable arms and cutters Mar. 4, 2003
5381868 Sealed bearing roller reamer Jan. 17, 1995
4792000 Method and apparatus for well drilling Dec. 20, 1988
4765417 Reaming apparatus for well drilling Aug. 23, 1988
4561508 Roller-reamer Dec. 31, 1985
4548284 Roller ball retention of reamer cutter assembly Oct. 22, 1985
4542797 Roller reamer Sep. 24, 1985
4508184 Roller reamer/stabilizer Apr. 2, 1985
4497384 Reamer disassembly Feb. 5, 1985
4480704 Reamer Nov. 6, 1984
4262760 Reamer-stabilizer Apr. 21, 1981
4226291 Reamer stabilizer for rock drills Oct. 7, 1980
4141421 Under reamer Feb. 27, 1979











 
 
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