Patents by Inventor Christopher W. Strock

Christopher W. Strock 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).

  • Cutting blade tips
    Patent number: 11066937
    Abstract: An integrally bladed rotor, including: a plurality of blades integrally formed with a hub as a single component, each of the plurality of blades having a blade body extending from the hub to an opposed blade tip surface along a longitudinal axis, wherein the blade body defines a pressure side and a suction side, and wherein the blade body includes a cutting edge defined between the blade tip surface of the blade body and the pressure side of the blade body, wherein the cutting edge is configured to abrade a seal section of an engine case.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: July 20, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Changsheng Guo, Christopher W. Strock
  • Abradable material feedstock and methods and apparatus for manufacture
    Patent number: 11059096
    Abstract: An apparatus for manufacturing a powder has: a chamber; a temperature control system for the chamber interior; and a conveyor within the chamber. First, second, and third powder sources supply respective first, second, and third powders along respective first, second, and third powder flowpaths. The second and third flowpaths merge with the first flowpath along the conveyor. The apparatus comprises a vaporizer for vaporizing a solvent to be delivered to the second and third powders along the second and third powder flowpaths.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: July 13, 2021
    Assignee: Raytheon Technologies Corporation
    Inventor: Christopher W. Strock
  • Thermal barrier coating for gas turbine engine components
    Patent number: 11047033
    Abstract: A component for a gas turbine engine according to an exemplary embodiment of the present disclosure can include a substrate, a thermal barrier coating deposited on at least a portion of the substrate, and an outer layer deposited on at least a portion of the thermal barrier coating. The outer layer can include a material that is reactive with an environmental contaminant that comes into contact with the outer layer to alter a microstructure of the outer layer.
    Type: Grant
    Filed: September 5, 2012
    Date of Patent: June 29, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Christopher W. Strock, Michael Maloney, David A. Litton, Benjamin Joseph Zimmerman, Brian T. Hazel
  • Coating to improve oxidation and corrosion resistance of abrasive tip system
    Patent number: 11028721
    Abstract: An abrasive coating for a substrate of a component in a gas path exposed to a maximum temperature of 500 degree Fahrenheit, comprising: a plurality of grit particles adapted to be placed on a top surface of the substrate; a matrix material bonded to the top surface; the matrix material partially surrounds the grit particles, wherein the grit particles extend above the matrix material relative to the top surface; and a film of oxidant resistant coating applied over the plurality of grit particles and the matrix material.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 8, 2021
    Assignee: Ratheon Technologies Corporation
    Inventors: Kevin Seymour, Christopher W. Strock, Thomas D. Kasprow
  • Geometrically segmented abradable ceramic thermal barrier coating with improved spallation resistance
    Patent number: 11015474
    Abstract: A turbine article includes a substrate with a geometric surface having a multiple of divots recessed into the substrate, and a ceramic topcoat disposed over the geometric surface, the topcoat including at least a first layer having a first hardness and a second layer having a second hardness, the first hardness different than the second hardness.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: May 25, 2021
    Assignee: Raytheon Technologies Corporation
    Inventor: Christopher W. Strock
  • METHOD FOR CLOSED PORE CERAMIC
    Publication number: 20210107839
    Abstract: A method includes forming a ceramic member that has a plurality of closed pores within a ceramic matrix. The forming includes compacting a ceramic powder to form intra-particle pores between particles of the ceramic powder, and sintering the compacted ceramic powder to cause diffusion of the ceramic powder and formation of the ceramic matrix. The diffusion does not fill the intra-particle pores and leaves the closed pores.
    Type: Application
    Filed: June 1, 2020
    Publication date: April 15, 2021
    Inventors: Susan M. Tholen, Christopher W. Strock
  • Vibration damping material for high temperature use
    Patent number: 10964302
    Abstract: An article includes a MAX phase solid and a high temperature melting point metallic material interdispersed with the MAX phase material.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: March 30, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Shahram Amini, Christopher W. Strock, Sergei F. Burlatsky, Dmitri Novikov
  • Calcium-magnesium alumino-silicate (CMAS) resistant thermal barrier coatings, systems, and methods of production thereof
    Patent number: 10934217
    Abstract: The thermal barrier coating includes reactive gadolinia in its microstructures and the embedded gadolinia effectively reacts with CMAS contaminant reducing the damage from CMAS. Moreover, a method to produce a CMAS resistant thermal barrier coating can include a post-treatment to the thermal barrier coating with the reactive gadolinia suspension in sol-gel state.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: March 2, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventor: Christopher W. Strock
  • Coating to improve oxidation and corrosion resistance of abrasive tip system
    Patent number: 10927685
    Abstract: An abrasive coating for a substrate of a component in a gas path exposed to a maximum temperature of 1750 degree Fahrenheit, comprising a plurality of grit particles adapted to be placed on a top surface of the substrate; a matrix material bonded to the top surface; the matrix material partially surrounds the grit particles, wherein the grit particles extend above the matrix material relative to the top surface; and a film of oxidant resistant coating applied over the plurality of grit particles and the matrix material.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: February 23, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Kevin Seymour, Christopher W. Strock, Thomas D. Kasprow
  • Metering hole geometry for cooling holes in gas turbine engine
    Patent number: 10895167
    Abstract: A turbine may include a blade coupled to a rotor, a vane upstream from the blade and coupled to a vane support that defines a metering hole, and a blade outer air seal disposed radially outward from the blade and downstream from the vane support. An impingement surface may be disposed between the vane support and the blade outer air seal. The impingement surface may be oriented at an angle to the metering hole of between 50 degrees and 5 degrees.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: January 19, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Paul M. Lutjen, Christopher W. Strock
  • GEOMETRICALLY SEGMENTED THERMAL BARRIER COATING WITH SPALL INTERRUPTER FEATURES
    Publication number: 20200325783
    Abstract: A method of preventing spallation for a geometrically segmented thermally insulating top coat on an article, the method comprising forming a surface feature in a surface of the article; forming a crack deflection feature in the surface proximate the surface feature; disposing the thermally insulating topcoat over the surface feature; and forming segmented portions that are separated by faults extending through the thermally insulating topcoat from the surface feature.
    Type: Application
    Filed: April 15, 2019
    Publication date: October 15, 2020
    Applicant: United Technologies Corporation
    Inventors: Christopher W. Strock, Paul M. Lutjen
  • Divot pattern for thermal barrier coating
    Patent number: 10801353
    Abstract: A component for a gas turbine engine includes a surface adjacent a flow of hot gases. A plurality of cavities is in a portion of the surface. The plurality of cavities have a first group of cavities with a first cross-section and a second group of cavities with a second cross-section different from the first cross-section. The first and second groups of cavities are arranged such that there is no straight line across the portion of the surface that does not intersect one of the plurality of cavities. A thermal barrier coating is over the surface and fills each of the plurality of cavities.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: October 13, 2020
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Paul M. Lutjen, Christopher W. Strock, Jose R. Paulino
  • Abrasive tip for composite fan blades
    Patent number: 10794394
    Abstract: A rotating component includes an airfoil section with a free end, the airfoil section being formed of a composite core with a metallic skin and an abrasive coating applied to the free end.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: October 6, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Christopher W. Strock, James O. Hansen
  • Gas turbine engine with geopolymer seal element
    Patent number: 10794221
    Abstract: A gas turbine engine includes a rotatable component and a non-rotatable component. A seal is carried on one of the rotatable component or the non-rotatable component to provide sealing there between. The seal includes a geopolymer seal element.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: October 6, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Kevin Seymour, Christopher W. Strock
  • Low permeability high pressure compressor abradable seal for bare ni airfoils having continuous metal matrix
    Patent number: 10774669
    Abstract: An air seal in a gas turbine engine comprising a substrate. A bond coating layer is adhered to the substrate. An abradable layer is adhered to the bond coating layer. The abradable layer comprises a metal matrix discontinuously filled with a soft ceramic material.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: September 15, 2020
    Assignee: Raytheon Technologies Corporation
    Inventor: Christopher W. Strock
  • Turbine abradable air seal system
    Patent number: 10760443
    Abstract: An air scal system for a rotor blade assembly of a gas turbine engine includes a substrate. An optional ceramic interlayer may be disposed on an optional bond coat deposited on the substrate. An erosion resistant thermal barrier coating (E-TBC) layer is disposed on the ceramic interlayer (if present) or on the bond coat, or on the substrate. An abradable layer is disposed on the erosion resistant thermal barrier coating (E-TBC) layer.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: September 1, 2020
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Christopher W. Strock, Paul M. Lutjen, Michael J. Bruskotter
  • DIVOT PATTERN FOR THERMAL BARRIER COATING
    Publication number: 20200256206
    Abstract: A component for a gas turbine engine includes a surface adjacent a flow of hot gases. A plurality of cavities is in a portion of the surface. The plurality of cavities have a first group of cavities with a first cross-section and a second group of cavities with a second cross-section different from the first cross-section. The first and second groups of cavities are arranged such that there is no straight line across the portion of the surface that does not intersect one of the plurality of cavities. A thermal barrier coating is over the surface and fills each of the plurality of cavities.
    Type: Application
    Filed: February 8, 2019
    Publication date: August 13, 2020
    Inventors: Paul M. Lutjen, Christopher W. Strock, Jose R. Paulino
  • FUSIBLE BOND FOR GAS TURBINE ENGINE COATING SYSTEM
    Publication number: 20200248577
    Abstract: A seal comprises a housing. A coating has at least two layers with a bond layer to be positioned between a housing and a second hard layer. The second hard layer is formed to be harder than the bond layer. The bond layer has a bond strength greater than or equal to 200 psi and less than or equal to 2000 psi. A gas turbine engine, and a method of forming a coating layer are also disclosed.
    Type: Application
    Filed: December 23, 2019
    Publication date: August 6, 2020
    Inventors: Christopher W. Strock, Enzo DiBenedetto
  • Abradable Material
    Publication number: 20200248708
    Abstract: A blade outer airseal comprising a body having: an inner diameter (ID) surface; an outer diameter (OD) surface; a leading end; a trailing end; a metallic substrate; and a coating system atop the substrate along at least a portion of the inner diameter surface. At least over a first area of the inner diameter surface, the coating system comprises an abradable layer comprising a metallic matrix and a filler. The filler forms at least 20% by volume of the abradable layer with agglomerates or aggregates of oxide particles, the oxide particles having a D50 size ?200 nm.
    Type: Application
    Filed: April 21, 2020
    Publication date: August 6, 2020
    Applicant: Raytheon Technologies Corporation
    Inventor: Christopher W. Strock
  • Rotor with zirconia-toughened alumina coating
    Patent number: 10731260
    Abstract: A gas turbine engine includes a rotor that has a rim, blades extending radially outwards from the rim, a hub extending radially inwards from the rim, an arm extending axially from the rim, the arm having a radially outer surface, and a coating disposed on the radially outer surface. The coating is zirconia-toughened alumina in which the alumina is a matrix with grains of the zirconia dispersed there through. The grains of zirconia are predominantly a tetragonal crystal structure.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: August 4, 2020
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Kevin Seymour, Christopher W. Strock