Patents by Inventor Chris Vargas

Chris Vargas 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).

  • Publication number: 20240399452
    Abstract: A repair method can comprise: machining a wall of the case to remove a damaged portion of the wall, the case including a metal alloy, the case originally formed by casting; arc welding an intermediate layer of a first material to a base surface formed from the machining to form a first portion of a repaired wall; and building up, via direct energy deposition, a remainder of the repaired wall with a second material.
    Type: Application
    Filed: May 31, 2023
    Publication date: December 5, 2024
    Applicant: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: CHRIS VARGAS, JILLIAN R. PAUN, DOUGLAS M. READ
  • Patent number: 11835304
    Abstract: A heat exchanger is provided for a gas turbine engine. This heat exchanger includes a pair of heat exchanger manifolds and a stack of flow channel modules arranged and fluidly coupled between the heat exchanger manifolds. The flow channel modules include a first flow channel module that includes a first heat exchanger section and a second heat exchanger section. The first heat exchanger section includes a base plate, a plurality of flow channel walls and a plurality of heat transfer augmentors. The flow channel walls project out from the base plate to the second heat exchanger section thereby forming a plurality of flow channels between the first heat exchanger section and the second heat exchanger section. The heat transfer augmentors project partially into at least one of the flow channels. A first of the heat transfer augmentors is formed from a different material than the base plate.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: December 5, 2023
    Assignee: RTX CORPORATION
    Inventors: Chris Vargas, Daniel B. Denis
  • Patent number: 11692245
    Abstract: An alloy composition includes, by weight: 20% to 23% of Cr; 8% to 10% of Mo; 3.15% to 4.15% of Nb+Ta; 0.25% to 1.5% of B; 0.35% to 1.75% of N; and a balance of Ni.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: July 4, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Chris Vargas, Carl Busta
  • Publication number: 20220298605
    Abstract: An alloy composition includes, by weight: 20% to 23% of Cr; 8% to 10% of Mo; 3.15% to 4.15% of Nb+Ta; 0.25% to 1.5% of B; 0.35% to 1.75% of N; and a balance of Ni.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 22, 2022
    Inventors: Chris Vargas, Carl Busta
  • Publication number: 20210071962
    Abstract: A method is provided for manufacturing at least a portion of a heat exchanger. During this method, a first heat exchanger section is formed that includes a base and a plurality of protrusions. The forming of the first heat exchanger section includes building up at least one protrusion material on the base to form the protrusions. The first heat exchanger section is attached to a second heat exchanger section. A plurality of flow channels are defined between the first heat exchanger section and the second heat exchanger section.
    Type: Application
    Filed: November 2, 2020
    Publication date: March 11, 2021
    Inventors: Chris Vargas, Daniel B. Denis
  • Patent number: 10927687
    Abstract: A gas turbine engine blade containment system is disclosed. The blade containment system may include a generally cylindrical casing being made of a first material, and a generally cylindrical ring being made of a second material coaxially surrounding the casing, at least some portion of the ring metallurgically bonded to the casing.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: February 23, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Chris Vargas, Robert Russell Mayer
  • Patent number: 10823511
    Abstract: A method is provided for manufacturing at least a portion of a heat exchanger. During this method, a first heat exchanger section is formed that includes a base and a plurality of protrusions. The forming of the first heat exchanger section includes building up at least one protrusion material on the base to form the protrusions. The first heat exchanger section is attached to a second heat exchanger section. A plurality of flow channels are defined between the first heat exchanger section and the second heat exchanger section.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: November 3, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Chris Vargas, Daniel B. Denis
  • Patent number: 10760686
    Abstract: Aspects are directed to a tribological and creep resistant system configured to operate at temperature in excess of 750° C., comprising: a piston seal that includes a nickel base alloy, where the nickel base alloy includes a Ni3(Al,X) type precipitated phase in an amount greater than 40% by volume. Aspects are directed to a system comprising: a piston seal that includes a cobalt-based alloy. Aspects are directed to a method comprising: heat treating an ingot of a nickel base alloy that includes coarsening a precipitated phase to facilitate forging or wrought forming the ingot, machining the ingot to include a substantially flat surface, and processing the ingot to generate a piston seal.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: September 1, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Dilip M. Shah, Pantcho Stoyanov, Chris Vargas
  • Publication number: 20200087794
    Abstract: Aspects of the disclosure are directed to a method of repairing a non-line of sight feature on a surface, the method comprising machining a worn irregular non-line of sight surface to provide a substantially planar repair surface, depositing a nickel plate base layer having a base layer thickness on the substantially planar repair surface, and depositing a protective layer having a protective layer thickness on the nickel plate base layer.
    Type: Application
    Filed: September 14, 2018
    Publication date: March 19, 2020
    Inventors: Matthew Grow, Chris Vargas, William Bogue, Steven Ivory
  • Patent number: 10329919
    Abstract: An airfoil may include an airfoil body, a cover, and a stud. The cover may be disposed on at least one of a suction side and a pressure side of the airfoil body and the stud may extend through the cover and into the airfoil body and the stud may be is joined to the airfoil body and the cover by a friction weld.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: June 25, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Chris Vargas, Steven D. Jenkel, Daniel A. Bales
  • Publication number: 20190128144
    Abstract: Aspects are directed to removing a portion of a component that includes wear to generate a void in the component, where a material of the component has a first microstructure, depositing a filler material in the void, subjecting the filler material to a cold working technique to compress the filler material, and applying a heat treatment to cause the filler material to have a second microstructure that is matched to the first microstructure. Aspects are directed to a case of an engine, including: a first portion with a first material that has a first microstructure, and a second portion with a second material that has a second microstructure, where the second microstructure is matched to the first microstructure, where the second material includes a plurality of layers, and where at least one layer of the plurality of layers includes a compressive residual stress.
    Type: Application
    Filed: November 2, 2017
    Publication date: May 2, 2019
    Inventors: Chris Vargas, Tahany Ibrahim El-Wardany, Michael A. Klecka, Matthew Grow, Tania Bhatia Kashyap
  • Publication number: 20190107202
    Abstract: Aspects are directed to a tribological and creep resistant system configured to operate at temperature in excess of 750° C., comprising: a piston seal that includes a nickel base alloy, where the nickel base alloy includes a Ni3(Al,X) type precipitated phase in an amount greater than 40% by volume. Aspects are directed to a system comprising: a piston seal that includes a cobalt-based alloy. Aspects are directed to a method comprising: heat treating an ingot of a nickel base alloy that includes coarsening a precipitated phase to facilitate forging or wrought forming the ingot, machining the ingot to include a substantially flat surface, and processing the ingot to generate a piston seal.
    Type: Application
    Filed: October 11, 2017
    Publication date: April 11, 2019
    Inventors: Dilip M. Shah, Pantcho Stoyanov, Chris Vargas
  • Publication number: 20190106996
    Abstract: A gas turbine engine blade containment system is disclosed. The blade containment system may include a generally cylindrical casing being made of a first material, and a generally cylindrical ring being made of a second material coaxially surrounding the casing, at least some portion of the ring metallurgically bonded to the casing.
    Type: Application
    Filed: December 3, 2018
    Publication date: April 11, 2019
    Inventors: Chris Vargas, Robert Russell Mayer
  • Patent number: 10234141
    Abstract: Attaching a fastener to a ceramic matrix composite or ceramic body by inserting a portion of the fastener into a compartment of the body, the compartment having a first portion and a second portion, the second portion outboard of and narrower than the first portion; and delivering a fluid into the fastener to expand a portion of the fastener within the blind compartment first portion.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: March 19, 2019
    Assignee: United Technoloigies Corporation
    Inventor: Chris Vargas
  • Patent number: 10167727
    Abstract: A gas turbine engine blade containment system is disclosed. The blade containment system may include a generally cylindrical casing being made of a first material, and a generally cylindrical ring being made of a second material coaxially surrounding the casing, at least some portion of the ring metallurgically bonded to the casing.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: January 1, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Chris Vargas, Robert Russell Mayer
  • Publication number: 20180372416
    Abstract: A method is provided for manufacturing at least a portion of a heat exchanger. During this method, a first heat exchanger section is formed that includes a base and a plurality of protrusions. The forming of the first heat exchanger section includes building up at least one protrusion material on the base to form the protrusions. The first heat exchanger section is attached to a second heat exchanger section. A plurality of flow channels are defined between the first heat exchanger section and the second heat exchanger section.
    Type: Application
    Filed: June 26, 2017
    Publication date: December 27, 2018
    Inventors: Chris Vargas, Daniel B. Denis
  • Publication number: 20180291746
    Abstract: An airfoil may include an airfoil body, a cover, and a stud. The cover may be disposed on at least one of a suction side and a pressure side of the airfoil body and the stud may extend through the cover and into the airfoil body and the stud may be is joined to the airfoil body and the cover by a friction weld.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 11, 2018
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Chris Vargas, Steven D. Jenkel, Daniel A. Bales
  • Publication number: 20180171431
    Abstract: A method of estimating an unknown solvus for a phase of a given alloy includes providing empirical data of a plurality of alloys from an alloy class, the empirical data at least including chemical compositions, heating rates, cooling rates and alloy solvus temperatures of the plurality of alloys, providing an alloy chemical composition, a selected heating rate and a selected cooling rate of another alloy from the alloy class that has an unknown solvus temperature, estimating the unknown solvus temperature based upon the empirical data to provide an estimated solvus temperature of the alloy, and establishing a solution heat treatment temperature corresponding to the estimated solvus temperature at which to treat a component that includes the alloy.
    Type: Application
    Filed: February 7, 2018
    Publication date: June 21, 2018
    Inventors: Chris Vargas, Eric A. Hansen, Raymond C. Benn, Daniel A. Bales, Ivan M. Schmidt, David W. Anderson, David Ulrich Furrer, William F. Matzke
  • Publication number: 20180030365
    Abstract: A coating including a structural matrix having a porosity and a solid lubricant that at least partially fills the porosity.
    Type: Application
    Filed: October 10, 2017
    Publication date: February 1, 2018
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Chris Vargas, Jeremy K. Paskind
  • Publication number: 20170314785
    Abstract: Attaching a fastener to a ceramic matrix composite or ceramic body by inserting a portion of the fastener into a compartment of the body, the compartment having a first portion and a second portion, the second portion outboard of and narrower than the first portion; and delivering a fluid into the fastener to expand a portion of the fastener within the blind compartment first portion.
    Type: Application
    Filed: April 28, 2016
    Publication date: November 2, 2017
    Applicant: United Technologies Corporation
    Inventor: Chris Vargas