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Class Information
Number: 175/354
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > Axle rotatable with cutter
Description: Apparatus in which the rolling cutter element is provided with a rotatably mounted supporting member which is integral therewith or fixed thereto to rotate therewith.










Patents under this class:

Patent Number Title Of Patent Date Issued
8448723 Seal assembly for drill bit May. 28, 2013
7942217 Cutting apparatus for a microtunnelling system May. 17, 2011
7762359 Cutter assembly including rotatable cutting element and drill bit using same Jul. 27, 2010
5427191 Auger head assembly and method of drilling hard earth formations Jun. 27, 1995
5366031 Auger head assembly and method of drilling hard earth formations Nov. 22, 1994
5040623 Controlled true geometry rock bit with one piece body Aug. 20, 1991
4967854 Double cone cutting head for a drill bit Nov. 6, 1990
4836614 Retainer scheme for machine bit Jun. 6, 1989
4813501 Rotary mining bit Mar. 21, 1989
4553615 Rotary drilling bits Nov. 19, 1985
4511006 Drill bit and method of use thereof Apr. 16, 1985
4489987 Mine tool bit with spring loaded button retainer Dec. 25, 1984
4485655 Tool holder for a mining tool bit and method for making same Dec. 4, 1984
4484783 Retainer and wear sleeve for rotating mining bits Nov. 27, 1984
4462638 Mining bit with improved split ring retainer Jul. 31, 1984
T103602 Rotary-type cutter element with means for distributing wear Nov. 1, 1983
4371210 Freely rotatable pick bit holder on rotary driven member and method Feb. 1, 1983
4346934 Excavating bit Aug. 31, 1982
RE30807 Point-attack bit Dec. 1, 1981
4247150 Bit arrangement for a cutting tool Jan. 27, 1981
4247147 Retainer clip for cutter bits Jan. 27, 1981
4201421 Mining machine bit and mounting thereof May. 6, 1980
4159746 Bit of circular cross-section Jul. 3, 1979
4154312 Drill bit with single cutting head May. 15, 1979
RE29900 Pick-type mining bit with support block having rotatable seat Feb. 6, 1979
4091882 Drilling tool May. 30, 1978
4084856 Self-retaining sleeve and bit Apr. 18, 1978
4065185 Point-attack bit Dec. 27, 1977
4026605 Mining tool May. 31, 1977











 
 
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