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Class Information
Number: 175/331
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element
Description: Apparatus comprising a rotary bit in which a cutter element or carrier for a fixed cutter is rotatably mounted thereon so that the cutter element or carrier may roll or tend to roll on a surface of the bore as the bit is rotated.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7401668 |
Single cone rock bit having inserts adapted to maintain hole gage during drilling |
Jul. 22, 2008 |
| 7367413 |
Cutting elements of gage row and first inner row of a drill bit |
May. 6, 2008 |
| 7331410 |
Drill bit arcuate-shaped inserts with cutting edges and method of manufacture |
Feb. 19, 2008 |
| 7320375 |
Split cone bit |
Jan. 22, 2008 |
| 7316281 |
Two-cone drill bit with enhanced stability |
Jan. 8, 2008 |
| 7299887 |
Roller bit with a journal pin offset from the central axis thereof |
Nov. 27, 2007 |
| 7292967 |
Methods for evaluating cutting arrangements for drill bits and their application to roller cone drill bit designs |
Nov. 6, 2007 |
| 7100711 |
Single cone rock bit having inserts adapted to maintain hole gage during drilling |
Sep. 5, 2006 |
| 7036613 |
Lip seal for roller cone drill bit |
May. 2, 2006 |
| 7004267 |
Drill bit cone protector |
Feb. 28, 2006 |
| 6988569 |
Cutting element orientation or geometry for improved drill bits |
Jan. 24, 2006 |
| 6873947 |
Method for simulating drilling of roller cone bits and its application to roller cone bit design and performance |
Mar. 29, 2005 |
| 6848521 |
Cutting elements of gage row and first inner row of a drill bit |
Feb. 1, 2005 |
| 6823951 |
Arcuate-shaped inserts for drill bits |
Nov. 30, 2004 |
| 6711969 |
Methods for designing rotary drill bits exhibiting sequences of substantially continuously variable cutter backrake angles |
Mar. 30, 2004 |
| 6640913 |
Drill bit with canted gage insert |
Nov. 4, 2003 |
| 6612384 |
Cutting structure for roller cone drill bits |
Sep. 2, 2003 |
| 6604587 |
Flat profile cutting structure for roller cone drill bits |
Aug. 12, 2003 |
| 6598689 |
Roller cone for drill bit having improved resistance to fatigue cracking |
Jul. 29, 2003 |
| 6564886 |
Drill bit with rows of cutters mounted to present a serrated cutting edge |
May. 20, 2003 |
| 6527068 |
Roller cone drill bit having non-axisymmetric cutting elements oriented to optimize drilling performance |
Mar. 4, 2003 |
| 6516293 |
Method for simulating drilling of roller cone bits and its application to roller cone bit design and performance |
Feb. 4, 2003 |
| 6510909 |
Rolling cone bit with gage and off-gage cutter elements positioned to separate sidewall and bottom hole cutting duty |
Jan. 28, 2003 |
| 6484824 |
Failure indicator for rolling cutter drill bit |
Nov. 26, 2002 |
| 6446739 |
Rock drill bit with neck protection |
Sep. 10, 2002 |
| 6443246 |
Long barrel inserts for earth-boring bit |
Sep. 3, 2002 |
| 6390210 |
Rolling cone bit with gage and off-gage cutter elements positioned to separate sidewall and bottom hole cutting duty |
May. 21, 2002 |
| 6367568 |
Steel tooth cutter element with expanded crest |
Apr. 9, 2002 |
| 6347676 |
Tooth type drill bit with secondary cutting elements and stress reducing tooth geometry |
Feb. 19, 2002 |
| 6336512 |
Drill bit having canted seal |
Jan. 8, 2002 |
| 6253862 |
Earth-boring bit with cutter spear point hardfacing |
Jul. 3, 2001 |
| 6250407 |
Rotary drill bit having filling opening for the installation of cylindrical bearings |
Jun. 26, 2001 |
| 6241034 |
Cutter element with expanded crest geometry |
Jun. 5, 2001 |
| 6227314 |
Inclined leg earth-boring bit |
May. 8, 2001 |
| 6213225 |
Force-balanced roller-cone bits, systems, drilling methods, and design methods |
Apr. 10, 2001 |
| 6209668 |
Earth-boring bit with improved cutting structure |
Apr. 3, 2001 |
| 6196338 |
Hardfacing rock bit cones for erosion protection |
Mar. 6, 2001 |
| 6173797 |
Rotary drill bits for directional drilling employing movable cutters and tandem gage pad arrangement with active cutting elements and having up-drill capability |
Jan. 16, 2001 |
| 6167975 |
One cone rotary drill bit featuring enhanced grooves |
Jan. 2, 2001 |
| 6164394 |
Drill bit with rows of cutters mounted to present a serrated cutting edge |
Dec. 26, 2000 |
| 6161634 |
Cutter element with non-rectilinear crest |
Dec. 19, 2000 |
| 6145605 |
Rotary drill bit and roller cutter for rock drilling |
Nov. 14, 2000 |
| 6095264 |
Rolling cutter drill bit with stabilized insert holes and method for making a rolling cutter drill bit with stabilized insert holes |
Aug. 1, 2000 |
| 6053263 |
Cutting element tip configuration for an earth-boring bit |
Apr. 25, 2000 |
| 5868213 |
Steel tooth cutter element with gage facing knee |
Feb. 9, 1999 |
| 5839525 |
Directional drill bit |
Nov. 24, 1998 |
| 5833020 |
Rolling cone bit with enhancements in cutter element placement and materials to optimize borehole corner cutting duty |
Nov. 10, 1998 |
| 5755297 |
Rotary cone drill bit with integral stabilizers |
May. 26, 1998 |
| 5697461 |
Rotary drill bit having a non-rotating gauge section |
Dec. 16, 1997 |
| 5695018 |
Earth-boring bit with negative offset and inverted gage cutting elements |
Dec. 9, 1997 |
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