Spiral Rib Or Tooth Row Patents (Class 175/377)
  • Patent number: 9476299
    Abstract: Apparatus, methods, and other embodiments associated with a mining and demolition tool are described herein. In an embodiment, a mining bit tool includes a mining and demolition bit tool base and a mining bit tool tip coupled to the mining bit tool base. The base includes a tapered portion and a stem. The tapered portion includes a first end and a second end, with a surface tapering from the first end to the second end. There are at least two flutes positioned along the tapered surface, where a first flute is positioned at an angle relative to a longitudinal axis passing through the center of the mining bit tool and a second flute is positioned to cross a path of the first flute. The stem extends from the first end of the tapered portion, and the tip is coupled to the second end of the tapered portion.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: October 25, 2016
    Inventors: Gregory Greenspan, Alex Greenspan
  • Patent number: 9428959
    Abstract: Systems and methods usable for drilling wells and performing other well operations include a drilling tool having inner and outer, counter-rotating drill bits. Opposing reactive torques generated by the inner bit and the outer bit can reduce or cancel the net reactive torque transmitted upwell, through the drill string. Counter rotation of the inner and the outer drill bits can be achieved by a gear system, which transfers torque from a single rotating tubular shaft to a tubular sleeve positioned concentrically about the tubular shaft. The gear system transfers torque from a first gear to a second gear, at a one-to-one rotation/torque ratio, but with an opposite direction of rotation. Tools connected to the tubular sleeve and tubular shaft can thereby be provided with opposing rotational motion.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: August 30, 2016
    Inventor: Robert Charles Southard
  • Patent number: 8978787
    Abstract: A reaming bit designed to operate with low torque fluctuation when driven with a turbine at speeds in the order of 300-600 RPM and above features a profile that is arcuate from the gauge dimension to the nose area or alternatively has a blunt straight taper section but with a ratio of profile length (PL) to bit size (BS) of under 0.75. The blades extend into a concave cone and the cutting structure continues along the blades towards the center. The blades have a step near the gauge section to increase the exposure of the blade cutting structure. An array of protrusions are disposed parallel to and behind the cutting structure to increase high speed stability and adjacent the blade step transition to protect outer casing on run in.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: March 17, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Silvino M. Ersan, Anthony Phillips, Maurilio V. Solano, Rudolf C. Pessier, Thorsten Schwefe
  • Patent number: 8973685
    Abstract: A reaming bit designed to operate with low torque fluctuation when driven with a turbine at speeds in the order of 300-600 RPM and above features a profile that is arcuate from the gauge dimension to the nose area or alternatively has a blunt straight taper section but with a ratio of profile length (PL) to bit size (BS) of under 0.75. The blades extend into a concave cone and the cutting structure continues along the blades towards the center. The blades have a step near the gauge section to increase the exposure of the blade cutting structure. An array of protrusions are disposed parallel to and behind the cutting structure to increase high speed stability and adjacent the blade step transition to protect outer casing on run in.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: March 10, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Silvino M. Ersan, Anthony Phillips, Maurilio V. Solano, Rudolf C. Pessier, Thorsten Schwefe
  • Patent number: 8893828
    Abstract: A drill bit may include a bit body having a plurality of blades extending radially therefrom and at least one cutting element for engaging a formation disposed on at least one of the plurality of blades. The bit body has a continuous infiltration binder and a plurality of carbide particles dispersed in the continuous infiltration binder, wherein at least a portion of the plurality of carbide particles and at least a portion of the continuous infiltration binder form a first carbide matrix region, and wherein the plurality of carbide particles forming the first carbide matrix region have an average grain sizes of less than about 44 microns.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: November 25, 2014
    Assignee: Smith International, Inc.
    Inventors: Gregory T. Lockwood, Madapusi K. Keshavan, Anthony Griffo
  • Patent number: 8869919
    Abstract: A drill bit may have a bit body, a plurality of cutting blades extending radially from the bit body and having cutting elements disposed thereon, the plurality of cutting blades forming a cutting blade gage pad diameter configured to contact a formation, and a plurality of raised volumes of material extending from the bit body and devoid of cutting elements, the plurality of raised volumes of material forming a gage pad diameter configured to contact the formation, wherein the plurality of cutting blades and the plurality of raised volume of material are circumferentially spaced having fluid courses that extend therebetween.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: October 28, 2014
    Assignee: Smith International, Inc.
    Inventors: Yuelin Shen, Youhe Zhang, Bala Durairajan, Charles H. S. Douglas, III
  • Patent number: 8544568
    Abstract: A PDC bit includes a plurality of blades. A blade includes a primary cutter row and a secondary cutter row. Primary PDC cutters on the primary cutter row are set in accordance with a single set methodology. Backup PDC cutters on the secondary cutter row are set in accordance with a methodology wherein a radial position of each backup PDC cutter in the secondary cutter row is offset from a radial position of each primary PDC cutter in the primary cutter row. The blade further includes a tertiary cutter row. Additional backup PDC cutters on the tertiary cutter row are set in accordance with a methodology wherein a radial position of each additional backup PDC cutter in the tertiary cutter row is offset from a radial position of each primary PDC cutter in the primary cutter row. The backup cutter setting methodology is effectively radially positions the included backup PDC cutters (in the secondary cutter row and/or tertiary cutter row) between primary PDC cutters in the primary cutter row.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: October 1, 2013
    Assignee: Varel International, Inc., L.P.
    Inventors: Cary Andrew Maurstad, Zane Michael Pettiet
  • Patent number: 8196683
    Abstract: A drill bit includes a plurality of continuous segments impregnated with diamond that are each mounted to form a corresponding blade. The regions between the blades define a plurality of fluid passages on the bit face. The blades extend radially outwardly to the gage. The continuous segments may be either straight or spiral in design. Furthermore, the design of the segments supports varying one or more of: diamond content, width, back rake angle and/or relief angle along a length of the segment.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: June 12, 2012
    Assignee: Varel International, Ind., L.P.
    Inventors: Alfazazi Dourfaye, Michel de Reynal
  • Publication number: 20080245577
    Abstract: A thrust washer located between the thrust surfaces of the head and the cone of a drill bit allows for radial rotation between the cone, thrust washer, and head during drilling operations. The thrust washer also accommodates axial rotation between the cone and the head. The mating thrust surfaces between the thrust washer and the head are contoured to allow the thrust washer to rotate axially with the cone, and provide increased bearing contact between the thrust washer and the cone.
    Type: Application
    Filed: April 5, 2007
    Publication date: October 9, 2008
    Inventors: Anton F. Zahradnik, Eric Sullivan, Aaron J. Dick, Donq Nguyen, Terry J. Koltermann, Scott Shiqiang Shu
  • Patent number: 7059431
    Abstract: The invention concerns a self-penetrating drilling method and a thrust-generating tool: the tool comprises N blades. Each blade comprised K drill cutters. The shapes, positions and orientations of said drill cutters are determined in the following manner: the kth drill cutter of the last blade drills, at the (q?1)th of the tool rotational cycle, a cut in the rock downstream of the one produced by the (k+1)th drill cutter of the first blade at the qth rotational cycle of the tool; the kth drill cutter of the nth blade drills, at the qth rotational cycle of the tool, a cut in the rock downstream of the one produced by the kth drill cutter of the (n+1)th blade at the qth rotational cycle of the tool; the normal to the leading edge of the drill cutter has a component along the axis of rotation oriented towards upstream.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: June 13, 2006
    Assignee: Armines
    Inventors: Christophe Simon, Hedi Sellami
  • Patent number: 7013999
    Abstract: A cutter element for a rolling cone bit includes a cutting surface having front and back surfaces, a pair of flanking surfaces that intersect in a rounded nose that is offset from the central axis of the cutter element's base. At least one flanking surface includes a concave region. The back surface presents a generally wedge-shaped top profile.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: March 21, 2006
    Assignee: Smith International, Inc.
    Inventor: John Tufts
  • Patent number: 6997273
    Abstract: The cutter element includes a rounded apex offset from the center line of the insert and having a relatively broad and blunt front face and a narrower, more rounded rear face. The cutter element may be disposed in the outermost inner row of a rolling cone cutter of a bit with the broader front face facing the borehole side wall so as to resist off center wear and resultant bit whirl. When placed in inner rows and oriented with the broader and flatter front face being the first portion of the cutting surface to engage the borehole, enhancements in bit durability may be achieved, particularly when drilling through formations of multiple hardness.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: February 14, 2006
    Assignee: Smith International, Inc.
    Inventor: Amardeep Singh
  • Publication number: 20030217867
    Abstract: A roller cone drill bit is disclosed which includes a bit body adapted to be coupled to a drill string, a bearing journal depending from the bit body and a single roller cone rotatably attached to the journal. The roller cone has a plurality of inserts disposed thereon. In one aspect, the inserts have an extension length of at least 0.6 inches. A roller cone drill bit is disclosed, including a bit body, a bearing journal depending from the bit body, and a single roller cone rotatably attached to the journal. The roller cone has a plurality of inserts disposed thereon. In another aspect, the inserts are arranged such that at most about 20 percent of the inserts are crossed substantially at centerlines thereof by any single plane which contains the axis of the cone axis 10 and which crosses at least two of the inserts.
    Type: Application
    Filed: May 21, 2002
    Publication date: November 27, 2003
    Inventors: Ying Xiang, George B. Witman, Michael A. Siracki
  • Publication number: 20030141109
    Abstract: The invention concerns a self-penetrating drilling method and a thrust-generating tool: the tool (1) comprises N blades (2a, 2b, 2c, 2d). Each blade comprised K drill bits (3a, 3b, 3c, 3d). The shapes, positions and orientations of said drill bits are determined in the following manner: the kth drill bit of the last blade drills, at the (q−1)th of the tool rotational cycle, a cut in the rock downstream of the one produced by the (k+1)th drill bit of the first blade at the qth rotational cycle of the tool; the kth drill bit of the nth blade drills, at the q?th rotational cycle of the tool, a cut in the rock downstream of the one produced by the kth drill bit of the (n+1)th blade at the qth rotational cycle of the tool; the normal to the leading edge of the drill bit has a component along the axis of rotation oriented towards upstream.
    Type: Application
    Filed: December 16, 2002
    Publication date: July 31, 2003
    Inventors: Christophe Simon, Hedi Sellami
  • Patent number: 6595304
    Abstract: This invention relates to a roller bit applying for the oil, natural gas, mine and geological drilling, and more particularly relates to a kind of roller bit with the parallel inlayed compacts, it includes head and cone, the compact land and the teeth-groove are arranged on the cone, the difference is that there are 2 to 3 compacts having the cylindrical body being arranged on the top of the base teeth along the teeth direction.The cutting performance of the present invention is similar to that of the oblate compacts, and, by utilizing the conventional cylindrical compacts, it is not only easy to process and with low manufacturing cost, but the bit can effectively drill through the stringered earth formation with both hard and soft formation and thus better economic benefit from drilling the stringered formation can be obtained.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: July 22, 2003
    Assignee: Kingdream Public Limited Company
    Inventor: Zhihua Chen
  • Publication number: 20030037964
    Abstract: A superabrasive cutter-equipped rotary drag bit especially suitable for directional drilling in subterranean formations. The bit may employ PDC cutters in an engineered cutter placement profile exhibiting optimal aggressiveness in relation to where the cutters are positioned along the profile of the bit extending from a cone region laterally, or radially, outward toward a gage region thereof. The engineered cutter placement profile may include cutters exhibiting differing degrees of aggressiveness positioned in order to maximize rate-of-penetration and minimize torque-on-bit while maintaining side cutting capability and steerability.
    Type: Application
    Filed: August 30, 2002
    Publication date: February 27, 2003
    Inventors: Lawrence Allen Sinor, Christopher C. Beuershausen, Mark W. Dykstra, Roger Fincher, Roland Illerhaus, Rudolf C.O. Pessier
  • Patent number: 6394198
    Abstract: A damper for downhole tools consisting of a plurality of damping inserts arrayed about the tool body so that their radial protrusion describes a circumference greater than desired gauge of the borehole. The damper inserts are configured with rounded working surfaces that radially protrude from the tool body and are coated with an abrasion resistant, superhard material. The damper inserts are progressively arrayed so that they are constantly forced against the walls of the borehole. In this manner, they may plastically fail the formation by an indenting, brinelling, or crushing action that produces a constant torsional load on the downhole tools, and controls the torsional unloading of the downhole tools and absorbs the vibrations of the drilling tool as the formation is being drilled.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: May 28, 2002
    Inventors: David R. Hall, Joe Fox
  • Patent number: 6167917
    Abstract: A drill pipe having a length of conduit having a first diameter, a first and a second end portion, where each end portion has a second diameter greater than the first diameter. An enlarged portion is located between and spaced from the first and second end portions, where the enlarged portion comprises a central section which has a third diameter greater than the first diameter. The central section has a substantially smooth external surface, and two end sections, one end section at either end of the central section, which vary in diameter between the first and the third diameter. One of the end sections has a spiral formation thereon.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: January 2, 2001
    Assignee: Schoeller Bleckmann Oilfield Equipment Limited
    Inventor: William Russell Scott Aitken
  • Patent number: 5547033
    Abstract: A rotary cone drill bit for forming a borehole having a bit body with an upper end portion adapted for connection to a drill string. A number of support arms extend from the bit body. Each support arm has an exterior surface. A number of cutter cone assemblies equal to the number of support arms are mounted respectively on the support arms and project generally downwardly and inwardly with respect to an associated support arm. A ramp is formed on the exterior surface of the support arm and is inclined at an angle from a leading edge of the support arm toward a trailing edge of the support arm such that the ramp directs cuttings upward in the borehole.
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: August 20, 1996
    Assignee: Dresser Industries, Inc.
    Inventor: Harry M. Campos, Jr.
  • Patent number: 5456328
    Abstract: A drill bit includes a rolling cutter having a plurality of closed-end circumferential rows of teeth protruding from the body of the cutter. At least one of the rows of teeth lies along a path defined either by multiple helical segments or a canted planar periphery.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: October 10, 1995
    Assignee: Dresser Industries, Inc.
    Inventor: William C. Saxman
  • Patent number: 5429201
    Abstract: A drill bit includes a rolling cutter having a plurality of circumferential rows of teeth protruding from the body of the cutter. At least one of the rows of teeth is a closed-end circumferential row located on the surface of the cutter along a closed-end circumferential path. The latter is a non-circular curve defined by a surface intersecting the body of the cutter obliquely with respect to its longitudinal axis.
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: July 4, 1995
    Assignee: Dresser Industries, Inc.
    Inventor: William C. Saxman
  • Patent number: 5224560
    Abstract: A modular drill bit mounts legs within recesses in a body which are parallel to the central axis of the body using threaded studs with tapered outer portions, in conjunction with an attached pin having recesses therein receiving the upper ends of the legs. The lower ends of the legs terminate in spindles of open face configuration rotatably receiving cones thereon for rotation via a arrangement of bushings, roller bearings and thrust bearings, and a plurality of seals which slide and therefore rotate relative to both the leg spindle and the cone with the help of pressure compensating apparatus. Each cone is provided with cutting teeth which are inclined in the direction of cone rotation and which cover the cone surface in a manner which provides scraping of substantially the entire bottom surface of the hole being drilled and in a manner providing efficient scraping and crushing action.
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: July 6, 1993
    Assignee: Modular Engineering
    Inventor: Carlos Fernandez
  • Patent number: 4848491
    Abstract: A drill bit for drilling deep holes in subsurface formations comprises a bit body having a generally hemispherical leading face and a gauge region, and two blades each extending spirally outwardly across the leading face of the bit body away from the axis of rotation, a cavity of substantial peripheral and axial extent being formed in the bit body on the forward side of each blade, and communicating with an associated exit channel in the gauge region. A plurality of cutting elements are mounted along each blade, the cutting elements being mounted closely adjacent one another side-by-side along the blade so that their cutting edges together form a single long cutting edge without substantial discontinuities. A passage in the bit body supplies drilling fluid to nozzles in the cavities for cooling and cleaning the cutting elements, fluid from the nozzles sweeping past the cutting elements and out through the exit channels.
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: July 18, 1989
    Assignee: Reed Tool Company Limited
    Inventors: Paul S. Burridge, Michael T. Wardley
  • Patent number: 4717290
    Abstract: This miling tool for underground work consists of a tool body which has a plurality of cutter blades. Each cutter blade has a negative axial rake and an essentially constant negative radial rake. In addition, each cutter arm has a close packing of cylindrical cutting grade tungsten carbide inserts set at a lead angle of about 0 to 10 degrees. The inserts are also preferably vertically offset on adjacent cutting blades.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: January 5, 1988
    Assignee: Homco International, Inc.
    Inventors: Carl D. Reynolds, Thurman B. Carter, Jr., Shane P. Hart
  • Patent number: 4552232
    Abstract: A rotary drag drill bit is seen wherein cutter bodies are rotatively connected to a main body structure at a fully offset position. The fully offset position is defined by a rotational axis of each cutter body, a longitudinal axis of the drill bit and end support points or positions of the cutter bodies. The rotational axes of the cutter bodies are perpendicular to the longitudinal axis of the drill bit. The end supports of the cutter body are each equal distance from any point on the longitudinal axis of the drill bit. The cutter bodies of essentially ellipsoidal configuration, being slightly thicker at a mid-portion thereof. Cutting elements are connected to flutes projecting above an outer surface of each cutter body. In a primary rotational direction of the drill string and drill bit, the rows abrade the bottom and side walls of a well bore as the cutter body attacks the earth formation as the drill bit is rotated.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: November 12, 1985
    Assignee: Spiral Drilling Systems, Inc.
    Inventor: Lawrence Frear
  • Patent number: 4408671
    Abstract: A roller bit for use with a drill string, having at least two cutters which are generally conically shaped; each cutter includes one or more teeth in inclined planes across a conical surface. The bit is attached to the drill string with the axis of rotation of the cutter angled with respect to the longitudinal axis of the drill string. The teeth on each cutter are arranged for maximum cuttings size and penetration rate.
    Type: Grant
    Filed: February 19, 1982
    Date of Patent: October 11, 1983
    Inventor: Beauford E. Munson
  • Patent number: 4393949
    Abstract: Apparatus for boring holes in rock comprising a boring head rotatable about an axis of advance and a multiplicity of cutters mounted on the head, a plurality of which each comprises a cutter body rotatable about a cutter axis and cutting tooth means forming a helical path about the cutter axis.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: July 19, 1983
    Assignee: Peterson Associates, Ltd.
    Inventor: Carl R. Peterson
  • Patent number: 4320808
    Abstract: A rotary drill bit and drill bit cone for drilling bore holes through earth formations. The rotary drill bit includes a generally hollow body portion having a plurality of longitudinally extending shanks which terminate with inwardly directed spindles. A cutting cone is mounted upon each shank spindle and is provided with a plurality of elevated, primary, land areas which extend in a spiral pattern from the apex of the cone to the base. In a preferred embodiment, a plurality of elevated, secondary, land areas spiral from points intermediate the apex and base of the cone to the base of the cone in an alternate arrangement with the primary land areas. Cutting teeth are mounted upon each of the primary and secondary spiral land areas for digging into the earth formations during a drilling operation and in a preferred embodiment comprised partial disc shaped members which are embedded into the land portions of the spiral drill cone.
    Type: Grant
    Filed: June 24, 1980
    Date of Patent: March 23, 1982
    Inventor: Wylie P. Garrett
  • Patent number: 4304440
    Abstract: A roller cutter especially adapted to fracture permafrost material includes a plurality of cutter teeth integrally formed with, and extending radially outwardly from the outer surface of a rotor. The rotor is antifrictionally supported on a stator to enable it to rotate about it along its longitudinal axis. The cutter teeth are arranged about the circumference of the rotor in a plurality of rings, with the rings uniformly spaced along the length of the rotor. The rings of teeth are progressively rotated relative to each other so that corresponding teeth of adjacent rows are staggered with respect to each other. However, the teeth of the rows at each end of the rotor are aligned along the rotor length.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: December 8, 1981
    Inventor: Charles L. Posciri
  • Patent number: 4194791
    Abstract: The specification discloses an insert tipped tool bit having grooves formed on the longitudinal periphery of the bit in the parent material supporting the insert and a method of reducing erosion of the insert supporting parent material by forming grooves on the longitudinal periphery of the tool bit and sizing and spacing the grooves so that earth fines can pack in the grooves and create a boundary layer of earth fines around the parent material.
    Type: Grant
    Filed: June 16, 1978
    Date of Patent: March 25, 1980
    Assignee: Kennametal Inc.
    Inventors: Robert H. Montgomery, Jr., Seibert S. Oaks