Patents by Inventor Nathan David Ames

Nathan David Ames 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).

  • Earth-boring tools having particle-matrix composite bodies and methods for welding particle-matrix composite bodies
    Patent number: 11370049
    Abstract: Methods for welding a particle-matrix composite body to another body and repairing particle-matrix composite bodies are disclosed. Additionally, earth-boring tools having a joint that includes an overlapping root portion and a weld groove having a face portion with a first bevel portion and a second bevel portion are disclosed. In some embodiments, a particle-matrix bit body of an earth-boring tool may be repaired by removing a damaged portion, heating the particle-matrix composite bit body, and forming a built-up metallic structure thereon. In other embodiments, a particle-matrix composite body may be welded to a metallic body by forming a joint, heating the particle-matrix composite body, melting a metallic filler material forming a weld bead and cooling the welded particle-matrix composite body, metallic filler material and metallic body at a controlled rate.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: June 28, 2022
    Assignee: Baker Hughes Holdings LLC
    Inventors: John H. Stevens, Redd H. Smith, James Andy Oxford, Jose Ramirez, Nathan David Ames, Shuchi Khurana
  • EARTH-BORING TOOLS HAVING PARTICLE-MATRIX COMPOSITE BODIES AND METHODS FOR WELDING PARTICLE-MATRIX COMPOSITE BODIES
    Publication number: 20200061732
    Abstract: Methods for welding a particle-matrix composite body to another body and repairing particle-matrix composite bodies are disclosed. Additionally, earth-boring tools having a joint that includes an overlapping root portion and a weld groove having a face portion with a first bevel portion and a second bevel portion are disclosed. In some embodiments, a particle-matrix bit body of an earth-boring tool may be repaired by removing a damaged portion, heating the particle-matrix composite bit body, and forming a built-up metallic structure thereon. In other embodiments, a particle-matrix composite body may be welded to a metallic body by forming a joint, heating the particle-matrix composite body, melting a metallic filler material forming a weld bead and cooling the welded particle-matrix composite body, metallic filler material and metallic body at a controlled rate.
    Type: Application
    Filed: November 1, 2019
    Publication date: February 27, 2020
    Inventors: John H. Stevens, Redd H. Smith, James Andy Oxford, Jose Ramirez, Nathan David Ames, Shuchi Khurana
  • Earth-boring tools having particle-matrix composite bodies and methods for welding particle-matrix composite bodies
    Patent number: 10493550
    Abstract: Methods for welding a particle-matrix composite body to another body and repairing particle-matrix composite bodies are disclosed. Additionally, earth-boring tools having a joint that includes an overlapping root portion and a weld groove having a face portion with a first bevel portion and a second bevel portion are disclosed. In some embodiments, a particle-matrix bit body of an earth-boring tool may be repaired by removing a damaged portion, heating the particle-matrix composite bit body, and forming a built-up metallic structure thereon. In other embodiments, a particle-matrix composite body may be welded to a metallic body by forming a joint, heating the particle-matrix composite body, melting a metallic filler material forming a weld bead and cooling the welded particle-matrix composite body, metallic filler material and metallic body at a controlled rate.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: December 3, 2019
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: John H. Stevens, Redd H. Smith, James Andy Oxford, Jose Ramirez, Nathan David Ames, Shuchi Khurana
  • System, method, and apparatus for reactive foil brazing of cutter components for fixed cutter bit
    Patent number: 8074869
    Abstract: A reactive foil is used to assemble the components of rock bit cutters and to affix cutting elements to rock bit bodies. A small pulse of localized energy ignites the foil in a fraction of a second to deliver the necessary amount of heat energy to flow solder or braze and form a strong, true metallic joint. The reaction in the foil may be activated using optical, electrical, or thermal sources.
    Type: Grant
    Filed: November 14, 2007
    Date of Patent: December 13, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Nicholas J. Lyons, Nathan David Ames
  • SYSTEM, METHOD, AND APPARATUS FOR REACTIVE FOIL BRAZING OF CUTTER COMPONENTS FOR FIXED CUTTER BIT
    Publication number: 20090078470
    Abstract: A reactive foil is used to assemble the components of rock bit cutters and to affix cutting elements to rock bit bodies. A small pulse of localized energy ignites the foil in a fraction of second to deliver the necessary amount of heat energy to flow solder or braze and form a strong, true metallic joint. The reaction in the foil may be activated using optical, electrical, or thermal sources.
    Type: Application
    Filed: November 14, 2007
    Publication date: March 26, 2009
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Nicholas J. Lyons, Nathan David Ames