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).

  • GAS TURBINE ENGINE WITH GEOPOLYMER SEAL ELEMENT
    Publication number: 20180306056
    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: Application
    Filed: April 25, 2017
    Publication date: October 25, 2018
    Inventors: Kevin Seymour, Christopher W. Strock
  • TURBINE ABRADABLE AIR SEAL SYSTEM
    Publication number: 20180298776
    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: Application
    Filed: April 9, 2018
    Publication date: October 18, 2018
    Inventors: Christopher W. Strock, Paul M. Lutjen, Michael J. Bruskotter
  • Abrasive Tip Blade Manufacture Methods
    Publication number: 20180274120
    Abstract: A method is provided for manufacturing a blade. The blade comprises an airfoil (100) having: a root end and a tip (106); a metallic substrate (102) along at least a portion of the airfoil; and an anodized layer (154). The method comprises roughening the tip to form protrusions(158?; 402?) and anodizing to form the anodized layer so that the protrusions form an abrasive (156; 400).
    Type: Application
    Filed: May 24, 2018
    Publication date: September 27, 2018
    Applicant: United Technologies Corporation
    Inventors: Christopher W. Strock, James O. Hansen
  • Aluminum based abradable material with reduced metal transfer to blades
    Patent number: 10065243
    Abstract: A turbomachine has a seal which mates to a plurality of airfoils. The seal is formed from an abradable aluminum based material having a plurality of hard phase particles embedded therein and having a melting point higher than a melting point of the melting point of the abradable coating matrix alloy.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: September 4, 2018
    Assignee: United Technologies Corporation
    Inventor: Christopher W. Strock
  • System and method for manufacture of abrasive coating
    Patent number: 10060273
    Abstract: A component for a gas turbine engine includes an airfoil section including a free end and an abrasive coating sprayed onto the free end, the abrasive coating including a polymer matrix and an abrasive filler, the abrasive filler between about 50%-75% by volume of the abrasive coating.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: August 28, 2018
    Assignee: United Technologies Corporation
    Inventor: Christopher W. Strock
  • Compressor abradable material seal with tailored wear ratio and desirable erosion resistance
    Patent number: 10060281
    Abstract: What is described is a wear resistant seal system that is adapted for resisting wear of a rotating part in a gas turbine engine as it rotates against a stationary part in the engine. The system includes an axially rotable member including an abrasive tip having a first tensile strength. The system also includes a stationary structure radially exterior and adjacent to the rotable member and including an abradable material. The abradable material includes a matrix material having a second tensile strength that, at least in a first temperature range, is lower than the first tensile strength and a filler material interspersed with the matrix material.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: August 28, 2018
    Assignee: United Technologies Corporation
    Inventors: Christopher W Strock, Changsheng Guo, Yan Chen
  • Outer Airseal Abradable Rub Strip
    Publication number: 20180230842
    Abstract: A blade outer airseal has a body comprising: an inner diameter (ID) surface; an outer diameter (OD) surface; a leading end; and a trailing end. The airseal body has 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 solid lubricant; and the metallic matrix comprises, by weight, 35% copper, 30.0-45.0% combined nickel, cobalt, and iron with combined iron and cobalt content at most one-third of the nickel content, 2.0-8.0% aluminum, and 5.0-15.0% chromium.
    Type: Application
    Filed: March 22, 2017
    Publication date: August 16, 2018
    Applicant: United Technologies Corporation
    Inventors: Xuan Liu, Christopher W. Strock
  • CUTTING BLADE TIPS
    Publication number: 20180223677
    Abstract: A blade includes a blade body extending from a blade root to an opposed blade tip surface along a longitudinal axis. The blade body defines a pressure side and a suction side. The blade body includes a cutting edge defined where the tip surface of the blade body meets the pressure side of the blade body. The cutting edge is configured to abrade a seal section of an engine case. A method for manufacturing a blade includes forming an airfoil with a root and an opposed tip surface along a longitudinal axis, wherein the airfoil defines a pressure side and a suction side. The method also includes forming a cutting edge where the tip surface of the airfoil meets the pressure side of the airfoil.
    Type: Application
    Filed: April 2, 2018
    Publication date: August 9, 2018
    Inventors: Changsheng Guo, Christopher W. Strock
  • TOUGHENED BOND LAYER AND METHOD OF PRODUCTION
    Publication number: 20180222805
    Abstract: According to one embodiment of this disclosure, a coating includes a plurality of elongated reinforcing materials. The coating includes a bond coat in which a first portion of a first elongated reinforcing material is embedded. The coating further includes a ceramic coat adjacent the bond coat in which a second portion of the first elongated reinforcing material is embedded.
    Type: Application
    Filed: April 5, 2018
    Publication date: August 9, 2018
    Inventors: Christopher W. Strock, Thomas J. Martin, Alexander Staroselsky, Sergey Mironets
  • Abrasive Tip Blade Manufacture Methods
    Publication number: 20180223678
    Abstract: A method is disclosed for manufacturing a blade tip coating. The blade tip coating (152) comprising an abrasive (156) and a matrix (154). The method comprises forming a mixture comprising the abrasive, a precursor of the matrix, and an additional particulate (158). The mixture is pressed, the additional particulate acting as a stop to limit thickness reduction of the mixture.
    Type: Application
    Filed: April 3, 2018
    Publication date: August 9, 2018
    Applicant: United Technologies Corporation
    Inventor: Christopher W. Strock
  • Max phase reinforced polymer matrix composite abradables with enhanced thermal conductivity
    Patent number: 10036402
    Abstract: A turbine engine system comprising a turbine engine component, such as a fan includes a fan casing and a fan blade rotatable within the fan casing. An abradable seal coupled to the fan casing proximate the fan blade. The abradable seal comprising an abradable composite layer including a MAX phase solid and a polymer based abradable composition.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: July 31, 2018
    Assignee: United Technologies Corporation
    Inventors: Shahram Amini, Christopher W Strock, Changsheng Guo
  • ABRADABLE SEAL AND METHOD OF PRODUCING A SEAL
    Publication number: 20180171462
    Abstract: An air seal for use in a gas turbine engine. The seal includes a thermally sprayed abradable seal layer. The abradable material is composed of aluminum powder forming a metal matrix, and co-deposited methyl methacrylate particles and/or hexagonal boron nitride particles embedded as filler in the metal matrix.
    Type: Application
    Filed: February 1, 2018
    Publication date: June 21, 2018
    Inventors: Charles R. Beaudoin, Christopher W. Strock
  • Seals for gas turbine engine
    Patent number: 10001022
    Abstract: The present disclosure relates to a first seal for an aircraft blade outer air seal (“BOAS”) comprising a first portion comprising a first channel and a second channel, and a second portion comprising a first projection and a second projection, wherein the first projection slidably couples to the first channel and the second projection slidably couples to the second channel. The first portion and/or the second portion may be coated with a low friction substance. The first portion may be coupled to a vane support and/or a BOAS, and the second portion may be coupled to a first OAS support. The first seal may enable a radial translation of the BOAS in response to an aircraft maneuver.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: June 19, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Christopher W. Strock, Paul M. Lutjen
  • Cold spray manufacturing of MAXMET composites
    Patent number: 10000851
    Abstract: A process of forming a MAXMET composite coating or component on an article, that in the case of components can be removed, comprising providing an article having a substrate. The process includes providing at least one powder containing the MAXMET composite, wherein the MAXMET composite comprises a mixture of MAX phase particles and metal. Cold spraying the at least one powder on the substrate at a critical velocity. Forming a layer of the MAXMET composite on the substrate.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: June 19, 2018
    Assignee: United Technologies Corporation
    Inventors: Shahram Amini, Christopher W Strock, John A Sharon, Michael A Klecka, Aaron T Nardi
  • Spray Masking for Rotors
    Publication number: 20180161805
    Abstract: A mask for masking a component at an annular boundary comprises a wall (90, 92) having an inner first rim portion having a first inner diameter (D1) and an outward rebate (140) adjacent the first rim portion.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 14, 2018
    Applicant: United Technologies Corporation
    Inventors: Christopher W. Strock, Charles R. Beaudoin, Robert D. Richard, Steven G. Lemay
  • Abrasive tip blade manufacture methods
    Patent number: 9982358
    Abstract: A method is provided for manufacturing a blade. The blade comprises an airfoil (100) having: a root end and a tip (106); a metallic substrate (102) along at least a portion of the airfoil; and an anodized layer (154). The method comprises roughening the tip to form protrusions (158?; 402?) and anodizing to form the anodized layer so that the protrusions form an abrasive (156; 400).
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: May 29, 2018
    Assignee: United Technologies Corporation
    Inventors: Christopher W. Strock, James O. Hansen
  • Spray masking for rotors
    Patent number: 9956580
    Abstract: A mask for masking a component at an annular boundary comprises a wall (90, 92) having an inner first rim portion having a first inner diameter (D1) and an outward rebate (140) adjacent the first rim portion.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: May 1, 2018
    Assignee: United Technologies Corporation
    Inventors: Christopher W. Strock, Charles R. Beaudoin, Robert D. Richard, Steven G. Lemay
  • Abrasive tip blade manufacture methods
    Patent number: 9957819
    Abstract: A method is disclosed for manufacturing a blade tip coating. The blade tip coating (152) comprising an abrasive (156) and a matrix (154). The method comprises forming a mixture comprising the abrasive, a precursor of the matrix, and an additional particulate (158). The mixture is pressed, the additional particulate acting as a stop to limit thickness reduction of the mixture.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: May 1, 2018
    Assignee: United Technologies Corporation
    Inventor: Christopher W. Strock
  • Turbine abradable air seal system
    Patent number: 9938849
    Abstract: An air seal 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: September 17, 2014
    Date of Patent: April 10, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Christopher W. Strock, Paul M. Lutjen, Michael J. Bruskotter
  • Cutting blade tips
    Patent number: 9932839
    Abstract: A blade includes a blade body extending from a blade root to an opposed blade tip surface along a longitudinal axis. The blade body defines a pressure side and a suction side. The blade body includes a cutting edge defined where the tip surface of the blade body meets the pressure side of the blade body. The cutting edge is configured to abrade a seal section of an engine case. A method for manufacturing a blade includes forming an airfoil with a root and an opposed tip surface along a longitudinal axis, wherein the airfoil defines a pressure side and a suction side. The method also includes forming a cutting edge where the tip surface of the airfoil meets the pressure side of the airfoil.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: April 3, 2018
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Changsheng Guo, Christopher W. Strock