Patents by Inventor Tania Bhatia Kashyap

Tania Bhatia Kashyap 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).

  • Patent number: 10717680
    Abstract: A method of fabricating a ceramic article includes providing a porous body that includes a plurality of fiber bundles that has an intra-bundle porosity and an inter-bundle porosity, infiltrating the intra-bundle porosity and the inter-bundle porosity with a mixture of particles in a liquid carrier, the particles having an average size selected with respect to at least the intra-bundle porosity, removing the liquid carrier from the porous body to deposit the particles in the intra-bundle porosity and in the inter-bundle porosity, infiltrating a preceramic polymer into a remaining intra-bundle porosity and a remaining inter-bundle porosity, and thermally converting the preceramic polymer to a ceramic material.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: July 21, 2020
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Shahram Amini, Xia Tang, Wayde R. Schmidt, Tania Bhatia Kashyap
  • Publication number: 20200181034
    Abstract: A ceramic article includes a ceramic matrix composite that has a porous reinforcement structure and a ceramic matrix within pores of the porous reinforcement structure. The ceramic matrix composite includes a surface zone comprised of an exterior surface of the ceramic matrix composite and pores that extend from the exterior surface into the ceramic matrix composite. A glaze material seals the surface zone within the pores of the surface zone and on the exterior surface of the surface zone as an exterior glaze layer on the ceramic matrix composite. The glaze material is a glass or glass-ceramic material. The ceramic matrix composite includes an interior zone under the surface zone, and the interior zone is free of any of the glaze material and has a greater porosity than the surface zone.
    Type: Application
    Filed: February 14, 2020
    Publication date: June 11, 2020
    Inventors: Paul Sheedy, Wayde R. Schmidt, Tania Bhatia Kashyap
  • Publication number: 20200088052
    Abstract: A cover plate for a rotor assembly is disclosed. In various embodiments, the cover plate includes an annular member having a radially inner portion and a radially outer portion with respect to a longitudinal axis, the radially inner portion including an aft face and an angled forward face, the angled forward face defining a forward face angle with respect to a cylindrical plane that is coaxial with the longitudinal axis, the face angle having a value that is greater than or equal to fifty degrees; a first tab and a second tab disposed proximate the radially inner portion of the annular member; and a slot disposed between the first tab and the second tab.
    Type: Application
    Filed: September 13, 2018
    Publication date: March 19, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Derek A Brigham, Jeffrey Leon, David Dwyer Whittle, Amarnath Ramlogan, Brian J Burke, Santiago Orellana, Tania Bhatia Kashyap, Dianbo Li
  • Publication number: 20200062664
    Abstract: An article includes a ceramic-based substrate and a barrier layer on the ceramic-based substrate. The barrier layer includes a matrix of barium-magnesium alumino-silicate or SiO2, a dispersion of silicon oxycarbide particles in the matrix, and a dispersion of particles, of the other of barium-magnesium alumino-silicate or SiO2, in the matrix.
    Type: Application
    Filed: August 26, 2019
    Publication date: February 27, 2020
    Inventors: Xia Tang, Paul Sheedy, Tania Bhatia Kashyap, Wayde R. Schmidt, Daniel G. Goberman
  • Publication number: 20200055083
    Abstract: A method for coating a ceramic matrix composite substrate with an environmental barrier coating includes the steps of: treating a surface of a ceramic matrix composite substrate to adjust wettability of the surface; and applying an aqueous slurry-based environmental barrier coating to the surface. The treating step can be a plasma treatment to remove organic contaminants, and can also be a treatment to modify oxidative state of the surface. The treatment can produce a surface for treatment that is hydrophilic and has a contact angle with aqueous-slurry coating materials of less than 40 degrees.
    Type: Application
    Filed: August 16, 2018
    Publication date: February 20, 2020
    Inventors: James T. Beals, Tania Bhatia Kashyap
  • Publication number: 20200055788
    Abstract: A process of coating a substrate containing silicon with an environmental barrier coating, comprising altering a surface of the substrate and applying an environmental barrier layer to the surface of the substrate.
    Type: Application
    Filed: August 16, 2018
    Publication date: February 20, 2020
    Applicant: United Technologies Corporation
    Inventors: Erik A. Mikalsen, James T. Beals, Tania Bhatia Kashyap
  • Publication number: 20200056488
    Abstract: An environmental barrier coating, comprising a substrate containing silicon; an environmental barrier layer applied to the substrate; the environmental barrier layer comprising an oxide matrix; an oxidant getter phase interspersed throughout the oxide matrix; and a self-healing phase interspersed throughout the oxide matrix.
    Type: Application
    Filed: August 16, 2018
    Publication date: February 20, 2020
    Inventors: Richard Wesley Jackson, James T. Beals, Tania Bhatia Kashyap, Wayde R. Schmidt, Paul Sheedy, Xia Tang
  • Patent number: 10562825
    Abstract: A ceramic article includes a ceramic matrix composite that has a porous reinforcement structure and a ceramic matrix within pores of the porous reinforcement structure. The ceramic matrix composite includes a surface zone and a glaze material within pores of the surface zone and on an exterior side of the surface zone as an exterior glaze layer.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: February 18, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Paul Sheedy, Wayde R. Schmidt, Tania Bhatia Kashyap
  • Publication number: 20200010375
    Abstract: An article includes a ceramic-based substrate and a barrier layer on the ceramic-based substrate. The barrier layer includes a matrix of barium-magnesium alumino-silicate or SiO2, a dispersion of silicon oxycarbide particles in the matrix, and a dispersion of particles, of the other of barium-magnesium alumino-silicate or SiO2, in the matrix.
    Type: Application
    Filed: August 26, 2019
    Publication date: January 9, 2020
    Inventors: Xia Tang, Paul Sheedy, Tania Bhatia Kashyap, Wayde R. Schmidt, Daniel G. Goberman
  • Publication number: 20190368359
    Abstract: A turbine airfoil for a gas turbine engine according to an exemplary embodiment of this disclosure includes among other possible things, a tip portion including a pocket portion that transitions into a shelf portion and a plurality of cooling holes for communicating cooling airflow to at least one of the pocket portion and the shelf portion.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 5, 2019
    Inventors: San Quach, Tania Bhatia Kashyap, David Dwyer Whittle, Jonathan A. Gomez-Leon
  • Patent number: 10472713
    Abstract: A method of fabricating a ceramic matrix composite includes infiltrating pores of a porous structure with a preceramic matrix polymer using a composite molding technique. The porous structure includes fibers and an exposed carbon coating on the fibers. The preceramic matrix polymer wets the exposed carbon coating. The preceramic matrix polymer is then pyrolyzed to convert the preceramic matrix polymer to a ceramic matrix.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: November 12, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Tania Bhatia Kashyap, Kathryn S. Read
  • Patent number: 10428666
    Abstract: A turbine vane includes an inner platform and an outer platform joined together by an airfoil. The airfoil has a leading edge and a trailing edge joined together by a pressure side and a suction side disposed opposite the pressure side. The inner platform defines a plurality of first inner cooling holes and a plurality of second inner cooling holes that are fluidly connected to an inner cooling passage. The plurality of first inner cooling holes are disposed proximate the leading edge and extend towards the suction side and the plurality of second inner cooling holes are disposed proximate the trailing edge and the suction side and extend towards the leading edge.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: October 1, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: John David Forbes, Gregory Anselmi, Christina E. Botnick, Eleanor D. Kaufman, Jeffrey Leon, Jeffrey R. Levine, Gerald M. Mace, Daniel C. Nadeau, Tania Bhatia Kashyap, Richard N. Allen
  • Patent number: 10392312
    Abstract: An article includes a ceramic-based substrate and a barrier layer on the ceramic-based substrate. The barrier layer includes a matrix of barium-magnesium alumino-silicate or SiO2, a dispersion of silicon oxycarbide particles in the matrix, and a dispersion of particles, of the other of barium-magnesium alumino-silicate or SiO2, in the matrix.
    Type: Grant
    Filed: January 7, 2015
    Date of Patent: August 27, 2019
    Assignee: United Technologies Corporation
    Inventors: Xia Tang, Paul Sheedy, Tania Bhatia Kashyap, Wayde R. Schmidt, Daniel G. Goberman
  • Patent number: 10385774
    Abstract: A turbine engine includes a first compressor and a second compressor fluidly parallel to the first compressor. A reverse flow combustor is fluidly connected to the first compressor and the second compressor. A first turbine and a second turbine are fluidly connected in series, and fluidly connected to an output of the reverse flow combustor.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: August 20, 2019
    Assignee: United Technologies Corporation
    Inventors: Daniel Bernard Kupratis, Tania Bhatia Kashyap, Mark F. Zelesky, Arthur W. Utay, Gabriel L. Suciu, Thomas N. Slavens, Kevin L. Rugg, Brian Merry
  • Patent number: 10364041
    Abstract: An auxiliary power unit may comprise a twin centrifugal compressor including a first blade. A turbine may be disposed aft of the twin centrifugal compressor. The turbine may include a second blade. The first blade comprises a first material and the second blade comprises a second material. The first material may the same as the second material. The twin centrifugal compressor may include forward centrifugal compressor and an aft centrifugal compressor disposed aft of the forward centrifugal compressor.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: July 30, 2019
    Assignee: United Technologies Corporation
    Inventors: Daniel Bernard Kupratis, Arthur W. Utay, Tania Bhatia Kashyap, Thomas N. Slavens, Kevin L. Rugg, Mark F. Zelesky, Brian D. Merry, Gabriel L. Suciu
  • Patent number: 10323167
    Abstract: A method for fabricating a ceramic material includes impregnating a porous structure with a mixture that includes a preceramic polymer and a filler. The filler includes at least one free metal. The preceramic polymer material is then rigidized to form a green body. The green body is then thermally treated to convert the rigidized preceramic polymer material into a ceramic matrix located within pores of the porous structure. The same thermal treatment or a second, further thermal treatment is used to cause the at least one free metal to move to internal porosity defined by the ceramic matrix or pores of the porous structure.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: June 18, 2019
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Wayde R. Schmidt, Tania Bhatia Kashyap, Paul Sheedy
  • 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: 20180215670
    Abstract: A method of fabricating a ceramic article includes providing a porous body that includes a plurality of fiber bundles that has an intra-bundle porosity and an inter-bundle porosity, infiltrating the intra-bundle porosity and the inter-bundle porosity with a mixture of particles in a liquid carrier, the particles having an average size selected with respect to at least the intra-bundle porosity, removing the liquid carrier from the porous body to deposit the particles in the intra-bundle porosity and in the inter-bundle porosity, infiltrating a preceramic polymer into a remaining intra-bundle porosity and a remaining inter-bundle porosity, and thermally converting the preceramic polymer to a ceramic material.
    Type: Application
    Filed: March 29, 2018
    Publication date: August 2, 2018
    Inventors: Shahram Amini, Xia Tang, Wayde R. Schmidt, SR., Tania Bhatia Kashyap
  • Publication number: 20180163551
    Abstract: A turbine vane includes an inner platform and an outer platform joined together by an airfoil. The airfoil has a leading edge and a trailing edge joined together by a pressure side and a suction side disposed opposite the pressure side. The inner platform defines a plurality of first inner cooling holes and a plurality of second inner cooling holes that are fluidly connected to an inner cooling passage. The plurality of first inner cooling holes are disposed proximate the leading edge and extend towards the suction side and the plurality of second inner cooling holes are disposed proximate the trailing edge and the suction side and extend towards the leading edge.
    Type: Application
    Filed: December 12, 2016
    Publication date: June 14, 2018
    Inventors: John David Forbes, Gregory Anselmi, Christina E. Botnick, Eleanor D. Kaufman, Jeffrey Leon, Jeffrey R. Levine, Gerald M. Mace, Daniel C. Nadeau, Tania Bhatia Kashyap, Richard N. Allen
  • Patent number: 9944564
    Abstract: A method of fabricating a ceramic article includes providing a porous body that includes a plurality of fiber bundles that has an intra-bundle porosity and an inter-bundle porosity, infiltrating the intra-bundle porosity and the inter-bundle porosity with a mixture of particles in a liquid carrier, the particles having an average size selected with respect to at least the intra-bundle porosity, removing the liquid carrier from the porous body to deposit the particles in the intra-bundle porosity and in the inter-bundle porosity, infiltrating a preceramic polymer into a remaining intra-bundle porosity and a remaining inter-bundle porosity, and thermally converting the preceramic polymer to a ceramic material.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: April 17, 2018
    Assignee: United Technologies Corporation
    Inventors: Shahram Amini, Xia Tang, Wayde R. Schmidt, Tania Bhatia Kashyap