Patents by Inventor John Daniel Belnap

John Daniel Belnap has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11840891
    Abstract: Cutting elements include a carbonate diamond-bonded body that is sintered under HPHT conditions in the presence of a carbonate material, where the body includes a matrix phase of intercrystalline bonded diamond with interstitial regions including the carbonate material, where the diamond-bonded body is sintered without a substrate. A matrix casting is formed and mechanically coupled to the body after the body is sintered, and a portion of the body surface is exposed along a surface of the matrix casting. The exposed body surface is thereafter intentionally treated to induce a compressive residual surface stress that is greater than a remaining portion of the body. The compressive residual surface stress is less than about 500 MPa, and from about 100 to 500 MPa, and a remaining region the body may have a residual stress of less than about 300 MPa, and less than about 100 MPa.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: December 12, 2023
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: John Daniel Belnap, Yahua Bao
  • Patent number: 11828108
    Abstract: A cutting element includes a substrate that is axially symmetric about a central axis. The substrate has a radius perpendicular to the central axis and that extends from the central axis to an outer surface of the substrate. A super-hard material is coupled to the substrate, and the central axis passes through the super-hard material. The super-hard material has an external surface defining at least one ridge protruding from a remainder of the external surface. A central point on the central axis is offset from the external surface of the super-hard material by a distance equal to the radius of the substrate. A distance measured from the external surface of the super-hard material to the central point is greatest at a position between 25° and 45° from the central axis of the substrate.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: November 28, 2023
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Ronald B. Crockett, Dwain Norris, Aaron Madsen, Neil Cannon, John Daniel Belnap
  • Publication number: 20230193697
    Abstract: A drilling tool having a body, at least one blade extending from the body, and a first cutting element attached to the at least one blade. The first cutting element includes a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge. The elongated protrusion has a geometry including a border extending around a concave surface, a face chamfer formed around the border, and sloped surfaces extending between the border and the edge. An edge chamfer is between the face chamfer and the edge.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 22, 2023
    Inventors: Manoj Mahajan, John Daniel Belnap, Xiaoge Gan, Yi Fang, Cheng Peng, Lynn Belnap, Youhe Zhang, Michael George Azar, Venkatesh Karuppiah, Anthony LeBaron, Xian Yao
  • Patent number: 11578538
    Abstract: A cutting element has a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge, wherein the elongated protrusion has a geometry including a border extending around a concave surface and sloped surfaces extending between the border and the edge, and wherein the concave surface has a major axis dimension measured between opposite sides of the border and a minor axis dimension measured perpendicularly to the major axis dimension and ranging from 50 percent to 99 percent of the major axis dimension.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: February 14, 2023
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Manoj Mahajan, John Daniel Belnap, Xiaoge Gan, Yi Fang, Cheng Peng, Lynn Belnap, Youhe Zhang, Michael George Azar, Venkatesh Karuppiah, Anthony LeBaron, Xian Yao
  • Patent number: 11492852
    Abstract: A cutting device for use in a drill bit has a body including an ultrahard material. The body has a top surface, a front surface, and at least one lateral surface adjacent the top surface. The lateral surface is oriented at a surface angle relative to the top surface between 30 and 150 degrees. One or more locking features are located on the lateral surface.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: November 8, 2022
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yahua Bao, John Daniel Belnap, Gregory Caron, Feng Yu, Cheng Peng, Michael David France, John Parker, Anatoliy Garan
  • Publication number: 20210215003
    Abstract: A cutting element has a cutting face at an opposite axial end from a base, a side surface extending from the base to the cutting face, an edge formed at the intersection between the cutting face and the side surface, and an elongated protrusion formed at the cutting face and extending between opposite sides of the edge, wherein the elongated protrusion has a geometry including a border extending around a concave surface and sloped surfaces extending between the border and the edge, and wherein the concave surface has a major axis dimension measured between opposite sides of the border and a minor axis dimension measured perpendicularly to the major axis dimension and ranging from 50 percent to 99 percent of the major axis dimension.
    Type: Application
    Filed: January 8, 2021
    Publication date: July 15, 2021
    Inventors: Manoj Mahajan, John Daniel Belnap, Xiaoge Gan, Yi Fang, Cheng Peng, Lynn Belnap, Youhe Zhang, Michael George Azar, Venkatesh Karuppiah, Anthony LeBaron, Xian Yao
  • Publication number: 20210172257
    Abstract: Cutting elements include a carbonate diamond-bonded body that is sintered under HPHT conditions in the presence of a carbonate material, where the body includes a matrix phase of intercrystalline bonded diamond with interstitial regions including the carbonate material, where the diamond-bonded body is sintered without a substrate. A matrix casting is formed and mechanically coupled to the body after the body is sintered, and a portion of the body surface is exposed along a surface of the matrix casting. The exposed body surface is thereafter intentionally treated to induce a compressive residual surface stress that is greater than a remaining portion of the body. The compressive residual surface stress is less than about 500 MPa, and from about 100 to 500 MPa, and a remaining region the body may have a residual stress of less than about 300 MPa, and less than about 100 MPa.
    Type: Application
    Filed: August 21, 2019
    Publication date: June 10, 2021
    Inventors: John Daniel Belnap, Yahua Bao
  • Patent number: 11021913
    Abstract: A cutting bit includes a body, a plurality of blades, and at least one ultrahard insert cast directly into at least one of the plurality of blades. The ultrahard insert is positioned with a rear face directly contacting the blade.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: June 1, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yahua Bao, John Daniel Belnap
  • Patent number: 11008815
    Abstract: Cutting elements include a diamond-bonded body attached with a substrate. The substrate has a coercivity of greater than about 200 Oe, and has a magnetic saturation of from about 73 to 90. The diamond-bonded body has a compressive stress at the surface of greater than about 0.9 GPa after heat treatment, and greater than about 1.2 GPa prior to heat treatment.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: May 18, 2021
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: John Daniel Belnap, Yi Fang, Michael David France, David P. DenBoer, Haibo Zhang
  • Patent number: 10781643
    Abstract: A cutting element has an ultrahard layer on a substrate, the ultrahard layer having a non-planar working surface. The non-planar working surface is formed from a first region and a second region, where the first region encompasses at least a cutting edge or tip of the cutting element and has a differing composition than the second region.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: September 22, 2020
    Assignee: SMITH INTERNATIONAL, INC.
    Inventors: Yahua Bao, Yi Fang, Haibo Zhang, John Daniel Belnap, Youhe Zhang
  • Patent number: 10456889
    Abstract: A cutting element may be formed by sintering together a plurality of metal carbide grains and a metal binder to form a substrate, forming at least one binder gradient in the substrate, and mounting an abrasive layer to the substrate at an interface. The concentration of metal binder material may decrease along at least one direction to form the at least one binder gradient.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: October 29, 2019
    Assignee: SMITH INTERNATIONAL, INC.
    Inventors: John Daniel Belnap, Georgiy Voronin, Peter T. Cariveau
  • Patent number: 10352105
    Abstract: A method of making a polycrystalline diamond compact includes forming multiple layers of premixed diamond particles and carbonate material, where the carbonate material includes an alkaline earth metal carbonate, and where each layer has a weight percent ratio of diamond to carbonate that is different from adjacent layers. The layers are subjected to high pressure high temperature conditions to form polycrystalline diamond.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: July 16, 2019
    Assignee: SMITH INTERNATIONAL, INC.
    Inventors: Yahua Bao, Anatoliy Garan, Michael David France, John Daniel Belnap
  • Publication number: 20190010763
    Abstract: A cutting element includes a substrate that is axially symmetric about a central axis. The substrate has a radius perpendicular to the central axis and that extends from the central axis to an outer surface of the substrate. A super-hard material is coupled to the substrate, and the central axis passes through the super-hard material. The super-hard material has an external surface defining at least one ridge protruding from a remainder of the external surface. A central point on the central axis is offset from the external surface of the super-hard material by a distance equal to the radius of the substrate. A distance measured from the external surface of the super-hard material to the central point is greatest at a position between 25° and 45° from the central axis of the substrate.
    Type: Application
    Filed: January 11, 2017
    Publication date: January 10, 2019
    Inventors: Ronald B. Crockett, Dwain Norris, Aaron Madsen, Neil Cannon, John Daniel Belnap
  • Publication number: 20180371844
    Abstract: A cutting bit includes a body, a plurality of blades, and at least one ultrahard insert cast directly into at least one of the plurality of blades. The ultrahard insert is positioned with a rear face directly contacting the blade.
    Type: Application
    Filed: December 14, 2016
    Publication date: December 27, 2018
    Inventors: Yahua Bao, John Daniel Belnap
  • Publication number: 20180363383
    Abstract: A cutting element may include: a substrate; and an ultrahard layer on the substrate, the ultrahard layer having a non-planar working surface, the non-planar working surface being formed from a first region and a second region, the first region, encompassing at least a cutting edge or tip of the cutting element and having a differing composition than the second region.
    Type: Application
    Filed: November 24, 2016
    Publication date: December 20, 2018
    Inventors: Yahua Bao, Yi Fang, Haibo Zhang, John Daniel Belnap, Youhe Zhang
  • Publication number: 20180363384
    Abstract: A cutting device for use in a drill bit has a body including an ultrahard material. The body has a top surface, a front surface, and at least one lateral surface adjacent the top surface. The lateral surface is oriented at a surface angle relative to the top surface between 30 and 150 degrees. One or more locking features are located on the lateral surface.
    Type: Application
    Filed: December 14, 2016
    Publication date: December 20, 2018
    Applicant: Smith International, Inc.
    Inventors: Yahua Bao, John Daniel Belnap, Gregory Caron, Feng Yu, Cheng Peng, Michael David France, John Parker, Anatoliy Garan
  • Publication number: 20180216411
    Abstract: Cutting elements include a diamond-bonded body attached with a substrate. The substrate has a coercivity of greater than about 200 Oe, and has a magnetic saturation of from about 73 to 90. The diamond-bonded body has a compressive stress at the surface of greater than about 0.9 GPa after heat treatment, and greater than about 1.2 GPa prior to heat treatment.
    Type: Application
    Filed: July 20, 2016
    Publication date: August 2, 2018
    Inventors: John Daniel Belnap, Yi Fang, Michael David France, David P. DenBoer, Haibo Zhang
  • Publication number: 20170122038
    Abstract: A method of making a polycrystalline diamond compact includes forming multiple layers of premixed diamond particles and carbonate material, where the carbonate material includes an alkaline earth metal carbonate, and where each layer has a weight percent ratio of diamond to carbonate that is different from adjacent layers. The layers are subjected to high pressure high temperature conditions to form polycrystalline diamond.
    Type: Application
    Filed: September 26, 2016
    Publication date: May 4, 2017
    Inventors: Yahua Bao, Anatoliy Garan, Michael David France, John Daniel Belnap
  • Patent number: 9482056
    Abstract: A cutting element may be formed by placing a plurality of diamond particles adjacent to a substrate in a reaction cell and subjecting the plurality of diamond particles to high pressure high temperature conditions to form a polycrystalline diamond body. The polycrystalline diamond body may have a cutting face area to thickness ratio ranging from 60:16 to 500:5 and at least one dimension greater than 8 mm.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: November 1, 2016
    Assignee: Smith International, Inc.
    Inventors: Ronald K. Eyre, John Daniel Belnap, Youhe Zhang, Yuelin Shen, Jibin Shi, Yuri Burhan
  • Publication number: 20160121458
    Abstract: A cutting element may be formed by sintering together a plurality of metal carbide grains and a metal binder to form a substrate, forming at least one binder gradient in the substrate, and mounting an abrasive layer to the substrate at an interface. The concentration of metal binder material may decrease along at least one direction to form the at least one binder gradient.
    Type: Application
    Filed: January 11, 2016
    Publication date: May 5, 2016
    Inventors: John Daniel Belnap, Georgiy Voronin, Peter T. Cariveau