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Class Information
Number: 175/341
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > Plural rolling cutters with intermeshing teeth
Description: Apparatus in which the bit is provided with a plurality of rolling cutter elements which cutter elements are provided with cutting edges arranged in circumferential rows about each cutter element, and which rows are positioned on each of the cutter elements so that the cutting edges of one row interfit the cutting edges of an adjacent cutter element row.










Patents under this class:

Patent Number Title Of Patent Date Issued
8607899 Rock bit and cutter teeth geometries Dec. 17, 2013
8606552 Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk Dec. 10, 2013
8601908 Method and apparatus for a true geometry, durable rotating drill bit Dec. 10, 2013
8579051 Anti-tracking spear points for earth-boring drill bits Nov. 12, 2013
8316968 Rolling cone drill bit having sharp cutting elements in a zone of interest Nov. 27, 2012
8296115 Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk Oct. 23, 2012
8195438 Method for designing cutting structure for roller cone drill bits Jun. 5, 2012
RE42445 Cutting structure for earth-boring bit to reduce tracking Jun. 14, 2011
7913778 Rock bit with hydraulic configuration Mar. 29, 2011
7860693 Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk Dec. 28, 2010
7841427 Optimized central PDC cutter and method Nov. 30, 2010
7779936 Staggered compact row on same land Aug. 24, 2010
7778777 Methods and systems for designing and/or selecting drilling equipment using predictions of rotary drill bit walk Aug. 17, 2010
7686104 Rolling cone drill bit having cutter elements positioned in a plurality of differing radial positions Mar. 30, 2010
7647991 Cutting structure for earth-boring bit to reduce tracking Jan. 19, 2010
7628230 Wide groove roller cone bit Dec. 8, 2009
7621345 High density row on roller cone bit Nov. 24, 2009
7370711 Rolling cone drill bit having non-circumferentially arranged cutter elements May. 13, 2008
7343990 Rotary rock bit with hardfacing to reduce cone erosion Mar. 18, 2008
6986395 Force-balanced roller-cone bits, systems, drilling methods, and design methods Jan. 17, 2006
6942045 Drilling with mixed tooth types Sep. 13, 2005
6651758 Rolling cone bit with elements fanned along the gage curve Nov. 25, 2003
6612384 Cutting structure for roller cone drill bits Sep. 2, 2003
6601661 Secondary cutting structure Aug. 5, 2003
6601660 Cutting structure for roller cone drill bits Aug. 5, 2003
6561291 Roller cone drill bit structure having improved journal angle and journal offset May. 13, 2003
6484824 Failure indicator for rolling cutter drill bit Nov. 26, 2002
6422327 Drill bit with ridge-cutting cutter elements Jul. 23, 2002
6367568 Steel tooth cutter element with expanded crest Apr. 9, 2002
6253862 Earth-boring bit with cutter spear point hardfacing Jul. 3, 2001
6241034 Cutter element with expanded crest geometry Jun. 5, 2001
6227315 Air jet earth-boring bit with non-offset cutters May. 8, 2001
6206116 Rotary cone drill bit with machined cutting structure Mar. 27, 2001
6176329 Drill bit with ridge-cutting cutter elements Jan. 23, 2001
6161634 Cutter element with non-rectilinear crest Dec. 19, 2000
6116359 Tri-cone kerf gage Sep. 12, 2000
5979575 Hybrid rock bit Nov. 9, 1999
5853055 Rock bit with an extended center jet Dec. 29, 1998
5311958 Earth-boring bit with an advantageous cutting structure May. 17, 1994
5027913 Insert attack angle for roller cone rock bits Jul. 2, 1991
4984643 Anti-balling earth boring bit Jan. 15, 1991
4763736 Asymmetrical rotary cone bit Aug. 16, 1988
4067406 Soft formation drill bit Jan. 10, 1978
3946820 Novel cutter elements for drill bits Mar. 30, 1976











 
 
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