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Class Information
Number: 175/346
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 > Separable support for cutter axle
Description: Apparatus wherein the rolling cutter element is mounted on an axle which is supported on the bit by means of two or more spaced readily detachable supporting devices.










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
7661489 Roller reamer Feb. 16, 2010
7308956 Method of securing a rotary cutter to a body of a down hole tool and a rotary cutter assembly Dec. 18, 2007
7000713 Blockless reamer Feb. 21, 2006
6527066 Hole opener with multisized, replaceable arms and cutters Mar. 4, 2003
5381868 Sealed bearing roller reamer Jan. 17, 1995
4793425 Profiled body roller-reamer stabilizer Dec. 27, 1988
4583604 Roller reamer with rotatably positioned bearing block Apr. 22, 1986
4548284 Roller ball retention of reamer cutter assembly Oct. 22, 1985
4508184 Roller reamer/stabilizer Apr. 2, 1985
4480704 Reamer Nov. 6, 1984
4437526 Milling tool for forming recesses in masonry, concrete and similar material structures Mar. 20, 1984
4398610 Roller reamer apparatus Aug. 16, 1983
4261426 Reamer stabilizer Apr. 14, 1981
4231437 Combined stabilizer and reamer for drilling well bores Nov. 4, 1980
4227586 Roller reamer apparatus Oct. 14, 1980
4189012 Earth boring tool Feb. 19, 1980
4000783 Conical boring tool Jan. 4, 1977











 
 
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