Patents by Inventor Anthony A. DiGiovanni

Anthony A. DiGiovanni 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: 10766823
    Abstract: Methods of forming a polycrystalline compact using at least one metal salt as a sintering aid. Such methods may include forming a mixture of the at least one metal salt and a plurality of grains of hard material and sintering the mixture to form a hard polycrystalline material. During sintering, the metal salt may melt or react with another compound to form a liquid that acts as a lubricant to promote rearrangement and packing of the grains of hard material. The metal salt may, thus, enable formation of hard polycrystalline material having increased density, abrasion resistance, or strength. The metal salt may also act as a getter to remove impurities (e.g., catalyst material) during sintering. The methods may also be employed to form cutting elements and earth-boring tools.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: September 8, 2020
    Assignee: Baker Hughes, a GE company, LLC
    Inventor: Anthony A. DiGiovanni
  • Patent number: 10662769
    Abstract: A Polycrystalline Diamond Compact (PDC) cutter for a rotary drill bit is provided with an integrated sensor and circuitry for making measurements of a property of a fluid in the borehole and/or an operating condition of the drill bit. A method of manufacture of the PDC cutter and the rotary drill bit is discussed.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: May 26, 2020
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Sunil Kumar, Anthony A. DiGiovanni, Danny E. Scott, Hendrik John, Othon Monteiro
  • Publication number: 20200157010
    Abstract: Methods of forming a polycrystalline compact using at least one metal salt as a sintering aid. Such methods may include forming a mixture of the at least one metal salt and a plurality of grains of hard material and sintering the mixture to form a hard polycrystalline material. During sintering, the metal salt may melt or react with another compound to form a liquid that acts as a lubricant to promote rearrangement and packing of the grains of hard material. The metal salt may, thus, enable formation of hard polycrystalline material having increased density, abrasion resistance, or strength. The metal salt may also act as a getter to remove impurities (e.g., catalyst material) during sintering. The methods may also be employed to form cutting elements and earth-boring tools.
    Type: Application
    Filed: January 24, 2020
    Publication date: May 21, 2020
    Inventor: Anthony A. DiGiovanni
  • Patent number: 10647614
    Abstract: Cutting elements include at least one metal diffused into interbonded grains of diamond. Earth-boring tools include at least one such cutting element. Methods of forming cutting elements may include forming a mixture of the at least one metal salt and a plurality of grains of hard material and sintering the mixture to form a hard polycrystalline material. During sintering, the metal salt may melt or react with another compound to form a liquid that acts as a lubricant to promote rearrangement and packing of the grains of hard material. The metal salt may, thus, enable formation of hard polycrystalline material having increased density, abrasion resistance, or strength. The metal salt may also act as a getter to remove impurities (e.g., catalyst material) during sintering. The methods may also be employed to form cutting elements and earth-boring tools.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: May 12, 2020
    Assignee: Baker Hughes Incorporated
    Inventor: Anthony A. DiGiovanni
  • Patent number: 10625230
    Abstract: Methods of forming polycrystalline diamond compacts include employing field assisted sintering techniques with high temperature and high pressure sintering techniques. For example, a particle mixture that includes diamond particles may be sintered by subjecting the particle mixture to a high temperature and high pressure sintering cycle, and pulsing direct electrical current through the particle mixture during at least a portion of the high temperature and high pressure sintering cycle. The polycrystalline diamond compacts may be used to form cutting elements for earth-boring tools. Sintering systems are configured to perform such sintering processes.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: April 21, 2020
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Anthony A. DiGiovanni, Danny E. Scott, Yavuz Kadioglu
  • Patent number: 10612312
    Abstract: Cutting elements for earth-boring tools may include a substrate and a polycrystalline superabrasive material secured to the substrate. The polycrystalline superabrasive material may include a first region including catalyst material in interstitial spaces among interbonded grains of the polycrystalline superabrasive material. A second region at least substantially free of catalyst material in the interstitial spaces among the interbonded grains of the polycrystalline superabrasive material may be located adjacent to the first region. An undulating boundary defined between the first region and the second region may include bumps and dimples formed by crests and troughs of a repeating pattern of concentric circles encircling a longitudinal axis of the cutting element.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: April 7, 2020
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: David A. Stockey, Anthony A. DiGiovanni
  • Publication number: 20200102823
    Abstract: A Polycrystalline Diamond Compact (PDC) cutter for a rotary drill bit is provided with an integrated sensor and circuitry for making measurements of a property of a fluid in the borehole and/or an operating condition of the drill bit. A method of manufacture of the PDC cutter and the rotary drill bit is discussed.
    Type: Application
    Filed: June 22, 2017
    Publication date: April 2, 2020
    Inventors: Sunil Kumar, Anthony A. DiGiovanni, Danny E. Scott, Hendrik John, Othon R. Monteiro
  • Patent number: 10538432
    Abstract: Coated diamond particles have solid diamond cores and at least one graphene layer. Methods of forming coated diamond particles include coating diamond particles with a charged species and coating the diamond particles with a graphene layer. A composition includes a substance and a plurality of coated diamond particles dispersed within the substance. An intermediate structure includes a hard polycrystalline material comprising a first plurality of diamond particles and a second plurality of diamond particles. The first plurality of diamond particles and the second plurality of diamond particles are interspersed. A method of forming a polycrystalline compact includes catalyzing the formation of inter-granular bonds between adjacent particles of a plurality of diamond particles having at least one graphene layer.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: January 21, 2020
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Soma Chakraborty, Anthony A. DiGiovanni, Gaurav Agrawal, Danny E. Scott, Vipul Mathur
  • Patent number: 10428590
    Abstract: Cutting elements, earth-boring drill bits having such cutting elements and related methods include a cutting element having a superabrasive table positioned on a substrate, and at least one recessed surface in a cutting face of the superabrasive table.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: October 1, 2019
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Anthony A. DiGiovanni, Rudolf Carl Pessier
  • Patent number: 10428591
    Abstract: A cutting element for an earth-boring tool includes a substrate and volume of superabrasive material positioned on the substrate. The volume of superabrasive material includes a cutting face having at least one recess extending into the volume of superabrasive material and/or at least one protrusion extending outward from the volume of superabrasive material. The volume of superabrasive material includes a first chamfer surface having a peripheral edge and a radially innermost edge. The peripheral edge of the first chamfer surface is located proximate a cutting edge of the volume of superabrasive material. A radial width of the first chamfer surface is between about 0.002 inch and about 0.045 inch. The volume of superabrasive material also includes a second chamfer surface having a peripheral edge and a radially innermost edge. The peripheral edge of the second chamfer surface is located adjacent the radially innermost edge of the first chamfer surface.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: October 1, 2019
    Assignee: Baker Hughes Incorporated
    Inventors: Suresh G. Patel, David A. Stockey, Alejandro Flores, Anthony A. DiGiovanni, Danny E. Scott, Leroy W. Ledgerwood, III
  • Publication number: 20190255616
    Abstract: Polycrystalline compacts include a polycrystalline superabrasive material comprising a first plurality of grains of superabrasive material having a first average grain size and a second plurality of grains of superabrasive material having a second average grain size smaller than the first average grain size. The first plurality of grains is dispersed within a substantially continuous matrix of the second plurality of grains. Earth-boring tools may include a body and at least one polycrystalline compact attached thereto. Methods of forming polycrystalline compacts may include coating relatively larger grains of superabrasive material with relatively smaller grains of superabrasive material, forming a green structure comprising the coated grains, and sintering the green structure. Other methods include mixing diamond grains with a catalyst and subjecting the mixture to a pressure greater than about five gigapascals (5.0 GPa) and a temperature greater than about 1,300° C.
    Type: Application
    Filed: April 23, 2019
    Publication date: August 22, 2019
    Inventors: Danny E. Scott, Anthony A. DiGiovanni, Gaurav Agrawal, Soma Chakraborty
  • Patent number: 10385623
    Abstract: Cutting elements, earth-boring drill bits having such cutting elements and related methods include a cutting element having a superabrasive table positioned on a substrate, and at least one recessed surface in a cutting face of the superabrasive table.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: August 20, 2019
    Assignee: Baker Hughes, a GE Company, LLC
    Inventors: Anthony A. DiGiovanni, Rudolf Carl Pessier
  • Patent number: 10350563
    Abstract: Methods for forming cutting elements comprising polycrystalline materials, methods for forming polycrystalline compacts for cutting elements of a drilling tool, methods for forming polycrystalline diamond compacts, and resulting polycrystalline compacts and cutting elements are disclosed. Grains of a hard material are introduced to a press and subjected to a high-pressure, high-temperature (HPHT) process to sinter the grains. The system conditions (i.e., temperature and pressure) are then adjusted past a phase or state change point, after which, at least one of the system conditions is held during an anneal stage before the system conditions are adjusted to final levels. The resulting compacts and cutting elements may therefore include inter-granularly bonded hard material grains with a more stable microstructure (e.g., less stressed microstructure) than a polycrystalline compact and cutting element formed without an anneal stage during the HPHT process.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: July 16, 2019
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Anthony A. DiGiovanni, Danny E. Scott
  • Patent number: 10337255
    Abstract: Cutting elements for earth-boring tools include one or more recesses and/or one or more protrusions in a cutting face of a volume of superabrasive material. The superabrasive material may be disposed on a substrate. The cutting face may be non-planar. The recesses and/or protrusions may include one or more linear segments. The recesses and/or protrusions may comprise discrete features that are laterally isolated from one another. The recesses and/or protrusions may have a helical configuration. The volume of superabrasive material may comprise a plurality of thin layers, at least two of which may differ in at least one characteristic. Methods of forming cutting elements include the formation of such recesses and/or protrusions in and/or on a cutting face of a volume of superabrasive material. Earth-boring tools include such cutting elements, and methods of forming earth-boring tools include attaching such a cutting element to a tool body.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: July 2, 2019
    Assignees: Baker Hughes Incorporated, Element Six Limited
    Inventors: Anthony A. DiGiovanni, Yavuz Kadioglu, Danny E. Scott, Matthew J. Meiners, Rudolf Carl Pessier, Nicholas J. Lyons, Clement D. van der Riet, Donald Royceton Herschell, Cornelis Roelof Jonker, Roger William Nilen, Gerard Peter Dolan
  • Patent number: 10309157
    Abstract: A cutting element for use in a drilling bit and/or a milling bit having a cutter body made of a substrate having an upper surface, and a superabrasive layer overlying the upper surface of the substrate. The cutting element further includes a sleeve extending around a portion of a side surface of the superabrasive layer and a side surface of the substrate, wherein the sleeve exerts a radially compressive force on the superabrasive layer.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: June 4, 2019
    Assignees: Baker Hughes Incorporated, Element Six (Production) (PTY) LTD., Element Six Limited
    Inventors: Anthony A. DiGiovanni, Nicholas J. Lyons, Matthew S. Hale, Konstantin E. Morozov, John H. Liversage, Danny E. Scott, L. Allen Sinor
  • Publication number: 20190152786
    Abstract: A method of modifying surfaces of diamond particles comprises forming spinodal alloy coatings over discrete diamond particles, thermally treating the spinodal alloy coatings to form modified coatings each independently exhibiting a reactive metal phase and a substantially non-reactive metal phase, and etching surfaces of the discrete diamond particles with at least one reactive metal of the reactive metal phase of the modified coatings. Diamond particles and earth-boring tools are also described.
    Type: Application
    Filed: January 18, 2019
    Publication date: May 23, 2019
    Inventors: Anthony A. DiGiovanni, Steven W. Webb, Marc W. Bird
  • Patent number: 10279454
    Abstract: A polycrystalline compact includes a plurality of diamond grains of micron size, submicron size, or both, and a plurality of diamond nanoparticles disposed in interstitial spaces between the plurality of diamond grains. A method of forming a polycrystalline compact includes combining a plurality of micron and/or submicron-sized diamond grains and a plurality of diamond nanoparticles to form a mixture and sintering the mixture in a presence of a carburized binder to form a polycrystalline hard material having a plurality of inter-bonded diamond grains and diamond nanoparticles. Cutting elements including a polycrystalline compact and earth-boring tools bearing such compacts are also disclosed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 7, 2019
    Assignees: Baker Hughes Incorporated, Element Six Limited
    Inventors: Anthony A. DiGiovanni, Roger William Nigel Nilen
  • Patent number: 10246335
    Abstract: A method of modifying surfaces of diamond particles comprises forming spinodal alloy coatings over discrete diamond particles, thermally treating the spinodal alloy coatings to form modified coatings each independently exhibiting a reactive metal phase and a substantially non-reactive metal phase, and etching surfaces of the discrete diamond particles with at least one reactive metal of the reactive metal phase of the modified coatings. Diamond particles and earth-boring tools are also described.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: April 2, 2019
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Anthony A. DiGiovanni, Steven W. Webb, Marc W. Bird
  • Patent number: 10233697
    Abstract: Cutting elements for earth-boring tools may include a superhard, polycrystalline material and a substrate adjacent to and secured to the superhard, polycrystalline material at an interface. The substrate may include a first region exhibiting a first coefficient of thermal expansion and a second region exhibiting a second, different coefficient of thermal expansion. The first region may be spaced from the superhard, polycrystalline material. The second region may extend from laterally adjacent to at least a portion of the first region to longitudinally between the first region and the superhard, polycrystalline material.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: March 19, 2019
    Assignee: Baker Hughes Incorporated
    Inventors: Konrad T. Izbinski, Xu Huang, Anthony A. DiGiovanni, Marc W. Bird
  • Patent number: 10227827
    Abstract: A method of forming a polycrystalline diamond compact comprises providing metallized diamond particles including diamond particles including nanograins of a sweep catalyst secured thereto, the sweep catalyst comprising at least one of tungsten and tungsten carbide and constituting between about 0.01 weight percent and about 1.0 weight percent of the metallized diamond particles and placing the metallized diamond particles and a metal solvent catalyst in a container. The metallized diamond particles are subjected to a high-temperature, high-pressure process in the presence of the metal solvent catalyst to form a polycrystalline diamond material having inter-bonded diamond grains and nanograins of tungsten carbide, the nanograins of tungsten carbide covering less than about twenty percent of a surface area of the inter-bonded diamond grains. Polycrystalline diamond compacts and earth-boring tools including the polycrystalline diamond compacts are also disclosed.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: March 12, 2019
    Assignee: Baker Hughes Incorporated
    Inventors: Steven W. Webb, Anthony A. DiGiovanni