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Class Information
Number: 175/340
Name: Boring or penetrating the earth > Bit or bit element > Rolling cutter bit or rolling cutter bit element > With drilling fluid conduit details > Fluid conduit lining or element (e.g., slush tube or nozzle)
Description: Apparatus in which the means to supply drilling fluid comprises (1) a coated or treated passage or (2) a distinct element which is limited in use to conducting, directing, or blocking the drilling fluid.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7481284 |
Converging diverging nozzle for earth-boring drill bits, method of substantially bifurcating a drilling fluid flowing therethrough, and drill bits so equipped |
Jan. 27, 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 |
| 7188682 |
Multi-stage diffuser nozzle |
Mar. 13, 2007 |
| 7059430 |
Hydro-lifter rock bit with PDC inserts |
Jun. 13, 2006 |
| 7040423 |
Nozzle bore for high flow rates |
May. 9, 2006 |
| 6932285 |
Orifice body with mixing chamber for abrasive water jet cutting |
Aug. 23, 2005 |
| 6877571 |
Down hole drilling assembly with independent jet pump |
Apr. 12, 2005 |
| 6848517 |
Drillable drill bit nozzle |
Feb. 1, 2005 |
| 6789635 |
Drill bit for directional drilling in cobble formations |
Sep. 14, 2004 |
| 6763902 |
Rockbit with attachable device for improved cone cleaning |
Jul. 20, 2004 |
| 6698538 |
Drill bit having adjustable total flow area |
Mar. 2, 2004 |
| 6585063 |
Multi-stage diffuser nozzle |
Jul. 1, 2003 |
| 6581702 |
Three-cone rock bit with multi-ported non-plugging center jet nozzle and method |
Jun. 24, 2003 |
| 6571887 |
Directional flow nozzle retention body |
Jun. 3, 2003 |
| 6536847 |
Pick box for housing a mineral cutter pick |
Mar. 25, 2003 |
| 6474423 |
Drill bit (A) |
Nov. 5, 2002 |
| 6470980 |
Self-excited drill bit sub |
Oct. 29, 2002 |
| 6408957 |
Sealed bearing roller cone bit having anti-plugging device |
Jun. 25, 2002 |
| 6390211 |
Variable orientation nozzles for earth boring drill bits, drill bits so equipped, and methods of orienting |
May. 21, 2002 |
| 6390212 |
Drill bit (b) |
May. 21, 2002 |
| 6354387 |
Nozzle orientation for roller cone rock bit |
Mar. 12, 2002 |
| 6311793 |
Rock bit nozzle and retainer assembly |
Nov. 6, 2001 |
| 6227315 |
Air jet earth-boring bit with non-offset cutters |
May. 8, 2001 |
| 6227316 |
Jet bit with variable orifice nozzle |
May. 8, 2001 |
| 6192999 |
Extended drill bit nozzle having extended retainer |
Feb. 27, 2001 |
| 6186251 |
Method of altering a balance characteristic and moment configuration of a drill bit and drill bit |
Feb. 13, 2001 |
| 6142248 |
Reduced erosion nozzle system and method for the use of drill bits to reduce erosion |
Nov. 7, 2000 |
| 6142247 |
Biased nozzle arrangement for rolling cone rock bits |
Nov. 7, 2000 |
| 6135218 |
Fixed cutter drill bits with thin, integrally formed wear and erosion resistant surfaces |
Oct. 24, 2000 |
| 6116357 |
Rock drill bit with back-reaming protection |
Sep. 12, 2000 |
| 6098728 |
Rock bit nozzle arrangement |
Aug. 8, 2000 |
| 6082473 |
Drill bit including non-plugging nozzle and method for removing cuttings from drilling tool |
Jul. 4, 2000 |
| 6029756 |
Nozzle positioning assembly |
Feb. 29, 2000 |
| 5992763 |
Nozzle and method for enhancing fluid entrainment |
Nov. 30, 1999 |
| 5967244 |
Drill bit directional nozzle |
Oct. 19, 1999 |
| 5934389 |
Method for increasing hydraulic efficiency of drilling |
Aug. 10, 1999 |
| 5862871 |
Axial-vortex jet drilling system and method |
Jan. 26, 1999 |
| 5853055 |
Rock bit with an extended center jet |
Dec. 29, 1998 |
| 5775443 |
Jet pump drilling apparatus and method |
Jul. 7, 1998 |
| 5676214 |
Flow channels for tooth type rolling cutter drill bits |
Oct. 14, 1997 |
| 5669459 |
Nozzle retention system for rock bits |
Sep. 23, 1997 |
| 5601153 |
Rock bit nozzle diffuser |
Feb. 11, 1997 |
| 5579855 |
Rotary cone rock bit and method |
Dec. 3, 1996 |
| 5494122 |
Composite nozzles for rock bits |
Feb. 27, 1996 |
| 5303784 |
Drilling apparatus |
Apr. 19, 1994 |
| 5284215 |
Earth-boring drill bit with enlarged junk slots |
Feb. 8, 1994 |
| 5240083 |
Device for removing drillhole debris |
Aug. 31, 1993 |
| 5096005 |
Hydraulic action for rotary drill bits |
Mar. 17, 1992 |
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