Longitudinal Axis Cutter Patents (Class 175/348)
  • Patent number: 10415383
    Abstract: The present disclosure relates to a cutter assembly for an undercutting machine for cutting a rock workface and a method of disassembling a cutter assembly. The cutter assembly includes a shaft supporting structure, a shaft at least partly arranged within the shaft supporting structure, a cutter device arranged on the shaft or the shaft supporting structure, a first rolling element arranged between the shaft supporting structure and the shaft in a floating or slidable manner in an axial direction, and a second rolling element arranged between the shaft supporting structure and the shaft. A line orthogonal to an outer surface of the second rolling element crosses the longitudinal axis of the shaft at a center plane of the first rolling element or within a range of +/?25% of an axial extension of the first rolling element from the center plane.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: September 17, 2019
    Assignee: Sandvik Intellectual Property AB
    Inventor: Bernhard Ebner
  • Patent number: 9862039
    Abstract: A milling tool having multiple cutting disks is disclosed. Each cutting disk is anchored into a flute on the milling tool with clamping screws. During use, the cutting disks naturally become dull. In a preferred embodiment, a single clamping screw is used to hold the cutting disk in place. The clamping screw is loosened and the cutting disk is rotated such that a new and sharp portion of the cutting disk is exposed for use. In an alternative embodiment, multiple clamping screws are used to secure the cutting disk into the flute. In the event a cutting disk becomes stuck in a flute, a clamping screw in a threaded bore coaxially aligned with the locating bore is used to push the cutting disk and eject it out of the flute. This design allows for many positions on the cutting disk to be used before the disk needs to be replaced, sharpened, or refurbished.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: January 9, 2018
    Inventors: Richard Theriault, Inhwan Chang
  • Patent number: 9291000
    Abstract: A cutting structure may include an outer support element; and an inner rotatable cutting element comprising a cutting surface at its upper end; wherein the inner rotatable cutting element comprises at least one line contact along a circumferential side surface thereof and/or at least one point contact at a bottom face thereof.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: March 22, 2016
    Assignee: Smith International, Inc.
    Inventors: Youhe Zhang, Yuelin Shen, Yuri Burhan, Kjell Haugvaldstad
  • Publication number: 20110259646
    Abstract: In one aspect of the present invention a disc cutter for an earth boring system includes an axle and a sintered polycrystalline ceramic disc disposed about and forming a continuous perimeter around the axle. The disc cutter may be attached to a drill bit comprising a body, working face and plurality of blades. Another aspect of the present invention comprises a method of forming a disc cutter including providing a can of a generally cylindrical shape with a central axis, positioning a column of disposable material, carbide, and crystalline grains in such a manner so when put under high temperature and high pressure a compact in the shape of a disc cutter may be formed and a column from the center axis may be removed. Another method for forming a disc cutter comprises forming a plurality of compacts and bonding the compacts together in a generally toroidal shape.
    Type: Application
    Filed: April 23, 2010
    Publication date: October 27, 2011
    Inventors: David R. Hall, Ronald B. Crockett, Neil Cannon, Scott Richens
  • Patent number: 7617747
    Abstract: A rotary drag bit including an inverted cone geometry proximate the longitudinal axis thereof is disclosed. The inverted cone region may include a central region, the central region including a plurality of cutting structures affixed thereto and arranged along at least one spiral path. The at least one spiral path may encircle its center of revolution at least once within the inverted cone region. A cone region displacement and a method for manufacturing a rotary drag bit therewith are disclosed. At least one groove may be formed within the cone region displacement along a respective at least one spiral path, the at least one spiral path encircling its center of revolution at least once. A plurality of cutting structures may be placed within the at least one groove and the cone region displacement may be placed within a mold for filling with an infiltratable powder and infiltrating with a hardenable infiltrant.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: November 17, 2009
    Assignee: Baker Hughes Incorporated
    Inventors: Volker Richert, David W. Watson
  • Patent number: 7562726
    Abstract: The invention relates to a device for drilling a bore in the ground, comprising a drive system with a connecting rod assembly that extends from the drive system into the ground. The end of said assembly pointing towards the face or base of the bore is connected to a tool head (40). The device also comprises several tools (41) that are located on the tool head (40) and work on the face or the base of the bore. The inventive device is characterised in that each tool (41) comprises an excavation disc (45) and elements that cause the excavation disc (45) to oscillate during operation.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: July 21, 2009
    Assignee: Wirth Maschinen- und Bohrger├Ąte-Fabrik GmbH
    Inventors: Fritz Tibussek, Peter Heinrichs
  • Patent number: 7278499
    Abstract: A rotary drag bit including an inverted cone geometry proximate the longitudinal axis thereof is disclosed. The inverted cone region may include a central region, the central region including a plurality of cutting structures affixed thereto and arranged along at least one spiral path. The at least one spiral path may encircle its center of revolution at least once within the inverted cone region. A cone region displacement and a method for manufacturing a rotary drag bit therewith are disclosed. At least one groove may be formed within the cone region displacement along a respective at least one spiral path, the at least one spiral path encircling its center of revolution at least once. A plurality of cutting structures may be placed within the at least one groove and the cone region displacement may be placed within a mold for filling with an infiltratable powder and infiltrating with a hardenable infiltrant.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: October 9, 2007
    Assignee: Baker Hughes Incorporated
    Inventors: Volker Richert, David W. Watson
  • Patent number: 7240745
    Abstract: A lubricating nutating single cone drill bit 10 is disclosed. Bit 10 includes a bit shank 12 with an axially skewed bore 18 rotatably retaining a cutter body 22. A plurality of cutter elements (46, 48) are affixed to the cutter body 22. Bearings (26, 28, 30, 32) enable rotation of the cutter body 22 and lubricant is dispensed to the bearings from a lubricant chamber (76, 76?) by a plunger 80 driven by drilling fluid. A method to drill includes attaching the bit 10 to a drill string, engaging the bit 10 into a formation (WB), pumping a drilling fluid into a plunger 80 in the lubricant chamber 76 to dispense lubricant to the bearings (26, 28, 30, 32). The method can include pumping the drilling fluid through a fluid passage 90 in the bit 10 and out of a low pressure orifice 94 on the cutter body 22.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: July 10, 2007
    Inventor: Allen Kent Rives
  • Patent number: 6296069
    Abstract: A drill bit as used in particular in the oil well drilling field comprising a central body (2), cutting blades (3) protruding with respect to the body (2), both at the front of this body according to a drill direction and at the sides of this same body (2), and cutting elements (9) divided over an outer front surface (10) and over an outer lateral well sizing surface (11) comprised by each blade (3), wherein there are provided as cutting elements: in a central area (13) of the front surface (10), on at least one blade (3): at least one synthetic polycrystalline diamond compact cutting disc (12), and in a remaining area (14) of the front surface (10) of this blade, situated beyond said central area (13) with respect to the rotation axis, and on the other blades: thermally stable synthetic diamonds and/or impregnated diamond particles.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: October 2, 2001
    Assignee: Dresser Industries, Inc.
    Inventors: Etienne Lamine, Robert Delwiche
  • Patent number: 6109374
    Abstract: An improved stabilizing tool includes a body with a pocket, and a roller rotatably disposed in the pocket. The body includes a fluid passageway formed axially therethrough. The passageway has a first zone wherein the pressure of the fluid is relatively high and a second zone wherein the pressure is relatively low. A first conduit provides fluid communication between the first zone and an interior of the roller for the ingress of fluid to the interior, and a second conduit provides fluid communication between the interior of the roller and the second zone for the egress of the fluid back to the fluid passageway.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: August 29, 2000
    Assignee: Orbital Machinig and Manufacturing Ltd.
    Inventors: Constantin Burca, Hugh Gardner, Jim MacPhail, John MacPhail, Constantin Sarbu
  • Patent number: 4793425
    Abstract: A roller-reamer stabilizer having a plurality of roller cutters mounted in recesses in the supporting body such that each roller is free to rotate in its own bearing blocks. The cutters and bearing blocks are provided with air bleed lubrication and cooling from a central bore in the supporting body as is common and well known in the art. The present invention deals with the supporting body of a roller-reamer stabilizer of the near bit type and in particular one that would be used in the mining blast hole drilling industry. This supporting body is characterized by having a profiled lower end having maximum diameter outer surfaces separated by minimum diameter relief areas. The maximum diameter surfaces are, respectively, aligned with the cutters and extend upwardly from near the lower surface of the body to encompass the lower bearing blocks. The minimum diameter relief areas extend further up the body and terminate level with the upper bearing blocks.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: December 27, 1988
    Inventor: Kenneth M. White
  • Patent number: 4765417
    Abstract: A drilling tool for use in drilling operations for providing shock absorption capability and lateral support to the rotary drill string. The telescoping axial load shock absorber is positioned immediately adjacent at least one lateral support provided by a reamer or stabilizer. The stabilizer preferably employs a removable fixed blade secured to the tool by an undercut groove. The roller cutter for a reamer is also mounted in a preferred unique manner with the mounting blocks secured in a recess having an undercut retainer portion in the event of bolting failure. The mounting's brackets may be formed integral of the tool body or attached by welding or the like. A preferred form of mounting a blade on a stabilizer tool is also disclosed.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: August 23, 1988
    Assignee: Oil Patch Group Inc.
    Inventors: Gregg S. Perkin, Duane D. Papke
  • Patent number: 4709462
    Abstract: A drilling tool for use in drilling operations for providing shock absorption capability and lateral support to the rotary drill string. The telescoping axial load shock absorber is positioned immediately adjacent at least one lateral support provided by a reamer or stabilizer. The stabilizer preferably employs a removable fixed blade secured to the tool by an undercut groove. The roller cutter for a reamer is also mounted in a preferred unique manner with the mounting blocks secured in a recess having an undercut retainer portion in the event of bolting failure. The mounting's brackets may be formed integral of the tool body or attached by welding or the like. A preferred form of mounting a blade on a stabilizer tool is also disclosed.
    Type: Grant
    Filed: August 4, 1986
    Date of Patent: December 1, 1987
    Assignee: Oil Patch Group, Inc.
    Inventors: Gregg S. Perkin, Duane D. Papke
  • Patent number: 4527644
    Abstract: A drilling bit comprising a drill body formed from a base portion and a crown portion having a plurality of cutting elements; the base and crown portions are interengaged by a connection portion. An external opening in the crown portion communicates with a core-receiving section in the connecting portion. A core milling assembly, comprising a pair of rotatable, frustum-shaped rotary members, is supported in the connecting section. Each rotary member carries a plurality of cutting elements. During drilling, a core is received in the core-receiving section, where it is milled by the rotation of the rotary members.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: July 9, 1985
    Inventor: Farouk M. Allam
  • Patent number: 4217966
    Abstract: A metal cup with an apertured bottom provides a junk basket. The cup is spindled on the pin of a drill bit, e.g. a tungsten carbide insert roller cone bit, the bottom edge being releasably clamped between the pin shoulder and the shoulder formed by the mouth of the box on the member forming the lower end of the drill stem, e.g. a roller reamer. The connection between the pin and box and cup form a rotary shouldered connection, the pin shoulder and/or box mouth being cut back providing a longer pin neck or shallower box to accommodate the cup. Every time the bit is removed from the stem, the interiorly upwardly flaring cup is automatically dumped. In a modification, especially for small diameter holes, in order to provide space for junk to move both up outside the cup and down into the cup, the box on the adjacent drill stem member can be fluted, e.g.
    Type: Grant
    Filed: January 26, 1978
    Date of Patent: August 19, 1980
    Assignee: Smith International, Inc.
    Inventor: William R. Garrett
  • Patent number: 4203496
    Abstract: A Zublin type rotary drill bit is disclosed having a main body rotating about a main axis. The bit body includes a journl pin extending downwardly therefrom, with the journal pin forming a second axis disposed at an angle with respect to the main axis. The journal pin has a cutter rotatively mounted thereon, with the cutter having a spherical outer surface which has a plurality of inner rows of tungsten carbide mounted thereon. The gage row of the cutter is also formed on the spherical outer surface and defines a plane intersecting the intersection of the main and second axes. The cutter gage row is formed by a plurality of inserts having synthetic diamond cutting surfaces, which are facing downwardly toward the apex of the cutter, in order to scrape the sides of the bore hole during the downwardly traveling portion of the gage insert travel cycle.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: May 20, 1980
    Assignee: Smith International, Inc.
    Inventors: William Baker, III, Charles R. Harris