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Class Information
Number: 175/365
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > Outwardly directed stub axle
Description: Apparatus in which the rolling cutter element is journaled on axle or pin which is supported at its inner end only in cantilever fashion and extends radially away from the center of the bit head.










Patents under this class:

Patent Number Title Of Patent Date Issued
8572792 Cleaning tool for a pipe Nov. 5, 2013
7690446 Single cone rock bit having inserts adapted to maintain hole gage during drilling Apr. 6, 2010
7401668 Single cone rock bit having inserts adapted to maintain hole gage during drilling Jul. 22, 2008
7320375 Split cone bit Jan. 22, 2008
7100711 Single cone rock bit having inserts adapted to maintain hole gage during drilling Sep. 5, 2006
6719073 Single-cone rock bit having cutting structure adapted to improve hole cleaning, and to reduce tracking and bit balling Apr. 13, 2004
6533051 Roller cone drill bit shale diverter Mar. 18, 2003
6321858 Bit for directional drilling Nov. 27, 2001
6119797 Single cone earth boring bit Sep. 19, 2000
6026916 Rotary drill arrangement Feb. 22, 2000
5961185 Shielded cutterhead with small rolling disc cutters Oct. 5, 1999
5626201 Disc cutter and method of replacing disc cutters May. 6, 1997
5147000 Disc drill bit Sep. 15, 1992
5064007 Three disc drill bit Nov. 12, 1991
4936398 Rotary drilling device Jun. 26, 1990
4832143 Rotary drilling device May. 23, 1989
4796713 Activated earth drill Jan. 10, 1989
4790397 Rotary drilling device Dec. 13, 1988
4417629 Drill bit and method of manufacture Nov. 29, 1983
4359114 Raise drill bit inboard cutter assembly Nov. 16, 1982
4298080 Rock cutting tools Nov. 3, 1981











 
 
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