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Class Information
Number: 175/338
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > With rotary or endless carrier
Description: Apparatus in which the rolling cutter element is rotatably mounted on an endless or rotary carrier so that both the rolling cutter element and the carrier may roll or tend to roll on a surface of the bore as the bit is rotated.










Patents under this class:

Patent Number Title Of Patent Date Issued
8355815 Methods, systems, and devices for manipulating cutting elements for earth-boring drill bits and tools Jan. 15, 2013
5875860 Drill for making a pole in the ground and a method for applying such a drill Mar. 2, 1999
4446935 Intermittent high-drag oil well drilling bit May. 8, 1984
4405177 Apparatus for finishing surfaces Sep. 20, 1983
4371210 Freely rotatable pick bit holder on rotary driven member and method Feb. 1, 1983
4275928 Planing apparatus with bridging cutters Jun. 30, 1981
3975056 Longwall canted drum mining machine Aug. 17, 1976
3967854 Endless bucket type excavator Jul. 6, 1976











 
 
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