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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:

Class Number Class Name Patents
175/340 Fluid conduit lining or element (e.g., slush tube or nozzle) 153


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8672030 System for cementing tubulars comprising a mud motor Mar. 18, 2014
8312942 Roller cone drill bits with improved fluid flow Nov. 20, 2012
8100201 Rotary drill bit Jan. 24, 2012
8079427 Methods of forming earth-boring tools having features for affecting cuttings flow Dec. 20, 2011
7984772 Downhole centrifugal drilling fluid separator Jul. 26, 2011
7980332 Downhole centrifugal drilling fluid separator Jul. 19, 2011
7938203 Downhole centrifugal drilling fluid separator May. 10, 2011
7918292 Earth-boring tools having features for affecting cuttings flow Apr. 5, 2011
7913778 Rock bit with hydraulic configuration Mar. 29, 2011
7694608 Method of manufacturing a matrix body drill bit Apr. 13, 2010
7681668 Shrink-fit sleeve assembly for a drill bit, including nozzle assembly and method therefor Mar. 23, 2010
7681670 Two-cone drill bit Mar. 23, 2010
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

1 2 3










 
 
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