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Class Information
Number: 175/339
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > With drilling fluid conduit details
Description: Apparatus in which the bit is provided with a particular nozzle, passage or conduit to supply drilling fluid to the cutting edge of the rolling cutter element or to the surface of the formation being disintegrated.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7484572 |
Roller cone drill bit with debris flow paths through associated support arms |
Feb. 3, 2009 |
| 7325632 |
Nozzle bore for PDC bits |
Feb. 5, 2008 |
| 7252164 |
Cutting structure based hydraulics |
Aug. 7, 2007 |
| 7213661 |
Dual property hydraulic configuration |
May. 8, 2007 |
| 7140454 |
Well drilling bit |
Nov. 28, 2006 |
| 7131790 |
Boring and conduit/pipe system |
Nov. 7, 2006 |
| 7128171 |
Hydrodynamic pump passages for rolling cone drill bit |
Oct. 31, 2006 |
| 7059430 |
Hydro-lifter rock bit with PDC inserts |
Jun. 13, 2006 |
| 7040423 |
Nozzle bore for high flow rates |
May. 9, 2006 |
| 6971458 |
Drill bit |
Dec. 6, 2005 |
| 6725947 |
Roller bits with bearing failure indication, and related methods, systems, and methods of manufacturing |
Apr. 27, 2004 |
| 6688410 |
Hydro-lifter rock bit with PDC inserts |
Feb. 10, 2004 |
| 6581702 |
Three-cone rock bit with multi-ported non-plugging center jet nozzle and method |
Jun. 24, 2003 |
| 6540033 |
Method and apparatus for monitoring and recording of the operating condition of a downhole drill bit during drilling operations |
Apr. 1, 2003 |
| 6527065 |
Superabrasive cutting elements for rotary drag bits configured for scooping a formation |
Mar. 4, 2003 |
| 6484823 |
Rock drill bit and a check valve therefor |
Nov. 26, 2002 |
| 6450270 |
Rotary cone bit for cutting removal |
Sep. 17, 2002 |
| 6290006 |
Apparatus and method for a roller bit using collimated jets sweeping separate bottom-hole tracks |
Sep. 18, 2001 |
| 6227314 |
Inclined leg earth-boring bit |
May. 8, 2001 |
| 6142248 |
Reduced erosion nozzle system and method for the use of drill bits to reduce erosion |
Nov. 7, 2000 |
| 6102135 |
Portable core sampler |
Aug. 15, 2000 |
| 6095261 |
Drill bit reverse circulation apparatus and method |
Aug. 1, 2000 |
| 6082473 |
Drill bit including non-plugging nozzle and method for removing cuttings from drilling tool |
Jul. 4, 2000 |
| 6079507 |
Drill bits with enhanced hydraulic flow characteristics |
Jun. 27, 2000 |
| 5836404 |
Drill bits with enhanced hydraulic flow characteristics |
Nov. 17, 1998 |
| 5794725 |
Drill bits with enhanced hydraulic flow characteristics |
Aug. 18, 1998 |
| 5755297 |
Rotary cone drill bit with integral stabilizers |
May. 26, 1998 |
| 5699868 |
Rotary drill bits having nozzles to enhance recirculation |
Dec. 23, 1997 |
| 5595255 |
Rotary cone drill bit with improved support arms |
Jan. 21, 1997 |
| 5562171 |
Anti-balling drill bit |
Oct. 8, 1996 |
| 5553681 |
Rotary cone drill bit with angled ramps |
Sep. 10, 1996 |
| 5513711 |
Sealed and lubricated rotary cone drill bit having improved seal protection |
May. 7, 1996 |
| 5462128 |
Cutter bit for use in drilling operations |
Oct. 31, 1995 |
| 5452770 |
Rock bit and improved forging method for manufacturing thereof |
Sep. 26, 1995 |
| 5439067 |
Rock bit with enhanced fluid return area |
Aug. 8, 1995 |
| 5355967 |
Underbalance jet pump drilling method |
Oct. 18, 1994 |
| 5220966 |
Drilling apparatus of the cutting and shearing type |
Jun. 22, 1993 |
| 5139098 |
Combined drill and underreamer tool |
Aug. 18, 1992 |
| 5111894 |
Uninterrupted drill bit |
May. 12, 1992 |
| 5096005 |
Hydraulic action for rotary drill bits |
Mar. 17, 1992 |
| 5058690 |
Rock working tool |
Oct. 22, 1991 |
| 5012876 |
Rotary drill bit providing separation of liquid from gas |
May. 7, 1991 |
| 4981182 |
Sealed rotary blast hole drill bit utilizing air pressure for seal protection |
Jan. 1, 1991 |
| 4942930 |
Lubrication system for an earth boring drill bit and methods for filling and retrofit installing thereof |
Jul. 24, 1990 |
| 4887677 |
Low pressure drill bit |
Dec. 19, 1989 |
| 4883136 |
Large compact cutter rotary drill bit utilizing directed hydraulics for each cutter |
Nov. 28, 1989 |
| 4871037 |
Excavation apparatus, system and method |
Oct. 3, 1989 |
| 4852667 |
Pressure relief process for well-drilling |
Aug. 1, 1989 |
| 4813502 |
Drilling bit with improved trailing edge vent |
Mar. 21, 1989 |
| 4750573 |
Drill bit having a flush-out port |
Jun. 14, 1988 |
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