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).

  • Outer airseal insulated rub strip
    Patent number: 10247027
    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 and a thermal barrier layer between the abradable layer and the substrate; and the thermal barrier layer comprises a ceramic and metallic phases within the ceramic.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: April 2, 2019
    Assignee: United Technologies Corporation
    Inventors: Philip R. Rioux, Nicholas R Leslie, Paul M. Lutjen, Christopher W. Strock
  • TURBINE ENGINE SEAL FOR HIGH EROSION ENVIRONMENT
    Publication number: 20190085865
    Abstract: A seal for a gas turbine engine including an interlayer between a substrate and an abradable layer, the interlayer containing abrasive particles of which at least some abrasive particles protrude out of an interface that abuts the abradable layer.
    Type: Application
    Filed: September 19, 2017
    Publication date: March 21, 2019
    Applicant: United Technologies Corporation
    Inventor: Christopher W. Strock
  • Organic matrix abradable coating resistant to clogging of abrasive blade tips
    Patent number: 10233938
    Abstract: An abradable seal comprises an organic matrix composite comprising an additive and an organic component, the additive is configured to prevent adhesion of the organic component onto an abrasive blade tip.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: March 19, 2019
    Assignee: United Technologies Corporation
    Inventor: Christopher W Strock
  • Segmented Ceramic Coatings and Methods
    Publication number: 20190078463
    Abstract: A method comprising: spraying a ceramic coating to a substrate to a thickness of at least 5.0 mils (127 micrometers) without quench; and after the spraying, directing a carbon dioxide flow to a surface of the coating.
    Type: Application
    Filed: September 8, 2017
    Publication date: March 14, 2019
    Applicant: United Technologies Corporation
    Inventors: Christopher W. Strock, Paul M. Lutjen
  • Polymer-coated blade with abrasive tip
    Patent number: 10221698
    Abstract: A blade includes an airfoil section extending between leading and trailing edges, first and second opposed sides each joining the leading and trailing edges, and an inner end and a free tip end. The airfoil section is formed of a metal-based material with a polymeric overcoat on at least one of the leading edge, trailing edge, first side and second side. The airfoil section includes an abrasive tip at the free tip end. The abrasive tip has a composition selected with respect to heat-induced delamination of the polymeric overcoat from frictional heat generated during rubbing of the abrasive tip.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: March 5, 2019
    Assignee: United Technologies Corporation
    Inventors: Christopher W. Strock, Russell A. Beers
  • LOW PERMEABILITY HIGH PRESSURE COMPRESSOR ABRADABLE SEAL FOR BARE Ni AIRFOILS HAVING CONTINUOUS METAL MATRIX
    Publication number: 20190063251
    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: Application
    Filed: October 25, 2018
    Publication date: February 28, 2019
    Applicant: United Technologies Corporation
    Inventor: Christopher W. Strock
  • Abrasive blade tip treatment
    Patent number: 10183312
    Abstract: An abrasive coating for a metal airfoil tip in a gas turbine engine may include a plurality of grit particles coated with a braze alloy material and configured for attachment to the airfoil tip. The braze alloy may be a nickel base, cobalt base or iron base braze alloy or mixtures thereof, or a titanium base braze alloy.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: January 22, 2019
    Assignee: United Technologies Corporation
    Inventors: Christopher W. Strock, Changsheng Guo
  • TURBINE ENGINE SEAL FOR HIGH EROSION ENVIRONMENT
    Publication number: 20190003486
    Abstract: A gas turbine engine includes an inlet duct, a compressor section, a combustor section, and a turbine section connected to drive the compressor section. The compressor section includes circumferentially-spaced blades having abrasive blade tips. A seal is disposed radially outwards of the blades. The seal includes a substrate that has a substrate hardness, an abradable layer that has an abradable layer hardness, and a hard interlayer between the substrate and the abradable layer. The hard interlayer has an interlayer hardness that is higher than the abradable layer hardness and higher than the substrate hardness.
    Type: Application
    Filed: June 30, 2017
    Publication date: January 3, 2019
    Inventor: Christopher W. Strock
  • Turbine engine component with vibration damping
    Patent number: 10167733
    Abstract: A vibration resistant fan guide vane for a gas turbine engine is provided. The fan guide vane comprises a vibration damping component made of a MAXMET composite. The damping component may be a cover that covers some or all of the fan guide vane body. Alternatively, portions of the fan guide vane body or the entire vane body may be made from MAXMET composites. The disclosure makes use of the ultrahigh, fully reversible, non-linear elastic hysteresis behavior that MAXMET composites exhibit during cyclic elastic deformation in order to damp vibration.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: January 1, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Shahram Amini, Christopher W. Strock, Sergei F. Burlatsky, Dmitri Novikov
  • COMPRESSOR INNER AIR SEAL AND METHOD OF MAKING
    Publication number: 20180372111
    Abstract: An inner air seal includes a bond coat disposed on a substrate, an interlayer disposed on the bond coat, and an abrasive layer disposed on the interlayer.
    Type: Application
    Filed: June 26, 2017
    Publication date: December 27, 2018
    Inventors: Christopher W. Strock, Paul M. Lutjen
  • ALUMINA SEAL COATING WITH INTERLAYER
    Publication number: 20180371599
    Abstract: An abrasive coating for a substrate including a metallic based bond coat layer; a top layer; and an intermediate layer between the metallic based bond coat layer and the top layer. A method of applying an abrasive coating including applying a metallic based bond coat layer onto a substrate; grading an intermediate layer into the metallic based bond coat layer to form a graded transition between the metallic based bond coat layer and the intermediate layer; and grading a top layer into the intermediate layer to form a graded transition between the intermediate layer and the top layer.
    Type: Application
    Filed: June 26, 2017
    Publication date: December 27, 2018
    Applicant: United Technologies Corporation
    Inventor: Christopher W. Strock
  • Corrosion-Resistant Aluminum-Based Abradable Coatings
    Publication number: 20180361471
    Abstract: A coated article comprising: a substrate; and a coating on the substrate comprising: a metallic matrix comprising, by weight: Al as a largest constituent; 3.0-6.0 Cr; 1.5-4.0 Mn; 0.1-3.5 Co; and 0.3-2.0 Zr; and a filler and optionally porosity.
    Type: Application
    Filed: January 27, 2017
    Publication date: December 20, 2018
    Inventors: Pantcho P. Stoyanov, Christopher W. Strock, Thomas J. Watson
  • Hybrid Thermal Barrier Coating
    Publication number: 20180355734
    Abstract: An article has a metallic substrate having a plurality of recesses. A first coating is at least at the recesses and has: a splatted layer; and a columnar layer atop the splatted layer. A second coating is away from the recesses and has: a columnar layer atop the substrate without an intervening splatted layer.
    Type: Application
    Filed: June 12, 2017
    Publication date: December 13, 2018
    Applicant: United Technologies Corporation
    Inventors: Christopher W. Strock, Kevin W. Schlichting
  • ROTOR WITH ZIRCONIA-TOUGHENED ALUMINA COATING
    Publication number: 20180355489
    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: Application
    Filed: June 12, 2017
    Publication date: December 13, 2018
    Inventors: Kevin Seymour, Christopher W. Strock
  • Fixturing for thermal spray coating of gas turbine components
    Patent number: 10151245
    Abstract: A fixture assembly includes a standoff, a backplate and a spray coating shield attached to a support. The assembly supports a workpiece and sprays a base coat at substantially ninety degrees with respect to a surface of the workpiece to coat the workpiece with the base coat. The assembly sprays a top coat at an angle with respect to the surface of the workpiece to mask a shadowed surface area of the workpiece, where the angle different from ninety degrees.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: December 11, 2018
    Assignee: United Technologies Corporation
    Inventor: Christopher W. Strock
  • TURBINE COOLING AIR METERING ARRANGEMENT
    Publication number: 20180347395
    Abstract: A cooling system for a turbine engine includes a structure defining a fluid passageway. The fluid passageway includes an impingement surface. A first opening into the fluid passageway is also included. The first opening is disposed opposite the impingement surface of the fluid passageway such that airflow entering the fluid passageway impacts the impingement surface. An agglomerate retention structure is disposed on the impingement surface. The agglomerate retention structure holds particulates impacting the impingement surface entering through the opening. A turbine engine is also disclosed.
    Type: Application
    Filed: May 30, 2017
    Publication date: December 6, 2018
    Inventors: Christopher W. Strock, Paul M. Lutjen
  • METERING HOLE GEOMETRY FOR COOLING HOLES IN GAS TURBINE ENGINE
    Publication number: 20180347396
    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: Application
    Filed: May 30, 2017
    Publication date: December 6, 2018
    Applicant: United Technologies Corporation
    Inventors: Paul M. Lutjen, Christopher W. Strock
  • Low permeability high pressure compressor abradable seal for bare Ni airfoils having continuous metal matrix
    Patent number: 10145258
    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: April 17, 2015
    Date of Patent: December 4, 2018
    Assignee: United Technologies Corporation
    Inventor: Christopher W Strock
  • System and Method for Manufacture of Abrasive Coating
    Publication number: 20180328194
    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: Application
    Filed: July 24, 2018
    Publication date: November 15, 2018
    Applicant: United Technologies Corporation
    Inventor: Christopher W. Strock
  • ABRADABLE LAYER WITH GLASS MICROBALLOONS
    Publication number: 20180306047
    Abstract: A gas turbine engine includes a circumferential row of blades, with the blades having respective blade tips. A seal is disposed about the blades. The seal has an abradable layer which the tips of the blades, at times, rub against when the blades rotate. The rubbing produces a maximum temperature at the abradable layer. The abradable layer includes a metal matrix and microballoons dispersed in the metal matrix. The microballoons are formed of a glass that has a glass transition temperature that is approximately 50° F. to 300° F. greater than the maximum temperature.
    Type: Application
    Filed: April 25, 2017
    Publication date: October 25, 2018
    Inventors: Kevin Seymour, Christopher W. Strock