Patents by Inventor Craig R. McGarrah

Craig R. McGarrah 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: 12281597
    Abstract: A method of forming a vane assembly for a gas turbine engine includes the steps of 1) determining a re-stagger angle for an airfoil on a ceramic matrix composite (“CMC”) vane, 2) determine an adjusted position of a baffle to be inserted within a central chamber in the vane, inserting the baffle into a bathtub seal, and adjusting an upper face of the baffle to an orientation relative to a bathtub seal support face to account for the adjusted position of the baffle and 3) fixing the baffle upper face to the bathtub seal flange support face. A vane assembly and a gas turbine engine are also disclosed.
    Type: Grant
    Filed: August 21, 2023
    Date of Patent: April 22, 2025
    Assignee: RTX Corporation
    Inventors: David J. Wasserman, Craig R. McGarrah
  • Publication number: 20250067185
    Abstract: A method of forming a vane assembly for a gas turbine engine includes the steps of 1) determining a re-stagger angle for an airfoil on a ceramic matrix composite (“CMC”) vane, 2) determine an adjusted position of a baffle to be inserted within a central chamber in the vane, inserting the baffle into a bathtub seal, and adjusting an upper face of the baffle to an orientation relative to a bathtub seal support face to account for the adjusted position of the baffle and 3) fixing the baffle upper face to the bathtub seal flange support face. A vane assembly and a gas turbine engine are also disclosed.
    Type: Application
    Filed: August 21, 2023
    Publication date: February 27, 2025
    Inventors: David J. Wasserman, Craig R. McGarrah
  • Patent number: 11840930
    Abstract: A vane for a gas turbine engine, the vane including: an inner diameter platform and an outer diameter platform and an airfoil that extends between the inner diameter platform and the outer diameter platform, the airfoil having a leading edge, a trailing edge, a pressure side and a suction side, the inner diameter platform has a suction side mate face and a pressure side mate face, wherein the suction side mate face and the pressure side mate face of the inner diameter platform have an axial feather seal slot and a radial seal slot, the axial feather seal slot includes a leading edge portion that extends from the radial seal slot towards a leading edge of the inner diameter platform and a trailing edge portion that extends from the radial seal slot towards a trailing edge of the inner diameter platform, and a chamfer extends between the radial seal slot and the trailing edge portion of the axial feather seal slot.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: December 12, 2023
    Assignee: RTX CORPORATION
    Inventors: Tracy A. Propheter-Hinckley, Craig R. McGarrah, Kyle J. Brevick, Egon Salimusaj
  • Patent number: 11015473
    Abstract: A blade outer air seal assembly includes a seal segment that has a base portion that extends between a first circumferential side and a second circumferential side and from a first axial side to a second axial side. A first wall is axially spaced from a second wall. The first and second walls extend from the base portion to an outer wall to define a circumferentially extending seal passage. A carrier has a platform. A portion of the platform is within the seal passage. A radially extending first hook protrudes from the platform and is configured to engage with a support structure.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: May 25, 2021
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: William M. Barker, Thomas E. Clark, Craig R. McGarrah, Daniel J. Whitney
  • Publication number: 20200362715
    Abstract: A vane for a gas turbine engine, the vane including: an inner diameter platform and an outer diameter platform and an airfoil that extends between the inner diameter platform and the outer diameter platform, the airfoil having a leading edge, a trailing edge, a pressure side and a suction side, the inner diameter platform has a suction side mate face and a pressure side mate face, wherein the suction side mate face and the pressure side mate face of the inner diameter platform have an axial feather seal slot and a radial seal slot, the axial feather seal slot includes a leading edge portion that extends from the radial seal slot towards a leading edge of the inner diameter platform and a trailing edge portion that extends from the radial seal slot towards a trailing edge of the inner diameter platform, and a chamfer extends between the radial seal slot and the trailing edge portion of the axial feather seal slot.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 19, 2020
    Inventors: Tracy A. Propheter-Hinckley, Craig R. McGarrah, Kyle J. Brevick, Egon Salimusaj
  • Publication number: 20200300108
    Abstract: A blade outer air seal assembly includes a seal segment that has a base portion that extends between a first circumferential side and a second circumferential side and from a first axial side to a second axial side. A first wall is axially spaced from a second wall. The first and second walls extend from the base portion to an outer wall to define a circumferentially extending seal passage. A carrier has a platform. A portion of the platform is within the seal passage. A radially extending first hook protrudes from the platform and is configured to engage with a support structure.
    Type: Application
    Filed: March 18, 2019
    Publication date: September 24, 2020
    Inventors: William M. Barker, Thomas E. Clark, Craig R. McGarrah, Daniel J. Whitney
  • Publication number: 20200300107
    Abstract: A blade outer air seal includes a base portion that extends between a first circumferential side and a second circumferential side and from a first axial side to a second axial side. A first wall is axially spaced from a second wall. The first and second walls extend from the base portion. An outer wall joins the first and second walls. The outer wall has a first edge and a second edge. Each of the edges have a first portion and a second portion arranged at a first angle relative to the first portion.
    Type: Application
    Filed: March 18, 2019
    Publication date: September 24, 2020
    Inventors: William M. Barker, Thomas E. Clark, Craig R. McGarrah, Daniel J. Whitney
  • Patent number: 10731493
    Abstract: A seal for sealing a radially outer component of a gas turbine engine stator to a radially inner component thereof includes an axially resilient seal carrier adapted for mounting the seal carrier and including at a radially inner portion thereof, a pair of radially spaced, axially extending, radially resilient jaws adapted to clamp a sealing element such as a rope seal there between in sealing engagement with a radially inner component of the engine stator.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: August 4, 2020
    Assignee: Ratheyon Technologies Corporation
    Inventors: Timothy M. Davis, Mark J. Rogers, Mark Broomer, Craig R. McGarrah, Carson A. Roy Thill
  • Patent number: 10641129
    Abstract: A component for a gas turbine engine is disclosed. The component includes a platform and a rail having an outer radial surface and an inner radial surface, with the inner radial surface connected to the platform. The rail includes a plurality of apertures spaced circumferentially between the outer radial surface and the inner radial surface, the apertures disposed to form a truss-like structure.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: May 5, 2020
    Assignee: UNITED TECHNOLOGIES CORPORATION
    Inventors: Brandon W. Spangler, Jose R. Paulino, Craig R. McGarrah, Edward R. Bareiss, Edwin Otero
  • Publication number: 20190136716
    Abstract: A component for a gas turbine engine is disclosed. The component includes a platform and a rail having an outer radial surface and an inner radial surface, with the inner radial surface connected to the platform. The rail includes a plurality of apertures spaced circumferentially between the outer radial surface and the inner radial surface, the apertures disposed to form a truss-like structure.
    Type: Application
    Filed: November 8, 2017
    Publication date: May 9, 2019
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: BRANDON W. SPANGLER, JOSE R. PAULINO, CRAIG R. McGARRAH, EDWARD R. BAREISS, EDWIN OTERO
  • Patent number: 10145308
    Abstract: A seal assembly for a gas turbine engine includes an engine static structure. First and second members fluidly separate cavities from one another. A seal assembly is captured by the engine structure. The seal assembly includes a carrier and a seal that engages the first member. The second member is captured by the carrier.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: December 4, 2018
    Assignee: United Technologies Corporation
    Inventors: Carson A. Roy Thill, Mark Broomer, Timothy M. Davis, Craig R. McGarrah, Mark J. Rogers, Russell E. Keene, Anthony B. Swift
  • Publication number: 20180328228
    Abstract: A vane assembly includes an outer platform, an inner platform, and a vane. The inner platform has an inner flange that includes a first face, a second face disposed opposite the first face, a third face extending from the first face towards the second face, and a fourth face extending from the third face towards a tip of the inner flange. The third face and the fourth face at least partially define a first notch.
    Type: Application
    Filed: March 13, 2018
    Publication date: November 15, 2018
    Inventors: Joseph F. Englehart, Craig R. McGarrah
  • Patent number: 10087771
    Abstract: A seal assembly is positioned within a cavity that extends circumferentially about an axial centerline of a gas turbine engine. The cavity includes a cavity wall. The seal assembly includes a seal and a seal protector. The seal extends circumferentially within the cavity. The seal protector extends circumferentially within the cavity. The seal protector is positioned between the seal and the cavity wall. The seal protector includes a locating feature that is operative to contact the seal to aid in axially positioning the seal protector relative to the seal.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: October 2, 2018
    Assignee: United Technologies Corporation
    Inventor: Craig R. Mcgarrah
  • Patent number: 9879558
    Abstract: An interface within a gas turbine engine includes a multiple of segmented components, each with a segment flange with a multiple of apertures, at least one of the multiple of apertures a first slot aperture. A full ring component with a ring flange that defines a multiple ring of apertures, at least one of the multiple of ring apertures a second slot aperture, the second slot aperture transverse to the first slot aperture.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: January 30, 2018
    Assignee: United Technologies Corporation
    Inventors: Mark J Rogers, Mark Broomer, Craig R. McGarrah, Timothy M Davis, Anthony B Swift, Russell E Keene, Carson A. Roy Thill, Timothy A. Dunbar
  • Patent number: 9670791
    Abstract: An assembly for a turbine engine includes a turbine engine first component, a turbine engine second component and a flexible seal that is attached to the first component. The flexible seal at least partially seals a gap between the first component and the second component. The flexible seal includes a mount and a finger seal that sealingly engages the second component. The mount includes a boss that sealingly engages the first component.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: June 6, 2017
    Assignee: United Technologies Corporation
    Inventors: Mark Broomer, Carson A. Roy Thill, Timothy M. Davis, Anthony P. Cherolis, Robert L. Hazzard, Craig R. McGarrah, Conway Choung, Russell E. Keene
  • Publication number: 20160061047
    Abstract: A seal for sealing a radially outer component of a gas turbine engine stator to a radially inner component thereof includes an axially resilient seal carrier adapted for mounting the seal carrier and including at a radially inner portion thereof, a pair of radially spaced, axially extending, radially resilient jaws adapted to clamp a sealing element such as a rope seal there between in sealing engagement with a radially inner component of the engine stator.
    Type: Application
    Filed: April 10, 2014
    Publication date: March 3, 2016
    Inventors: Timothy M. Davis, Mark J. Rogers, Mark Broomer, Craig R. McGarrah, Carson A. Roy Thill
  • Publication number: 20160010482
    Abstract: An interface within a gas turbine engine includes a multiple of segmented components, each with a segment flange with a multiple of apertures, at least one of the multiple of apertures a first slot aperture. A full ring component with a ring flange that defines a multiple ring of apertures, at least one of the multiple of ring apertures a second slot aperture, the second slot aperture transverse to the first slot aperture.
    Type: Application
    Filed: February 5, 2014
    Publication date: January 14, 2016
    Inventors: Mark J Rogers, Mark Broomer, Craig R McGarrah, Timothy M Davis, Anthony B Swift, Russell E Keene, Carson A. Roy Thill, Timothy A. Dunbar
  • Publication number: 20160003081
    Abstract: An assembly for a turbine engine includes a turbine engine first component, a turbine engine second component and a flexible seal that is attached to the first component. The flexible seal at least partially seals a gap between the first component and the second component. The flexible seal includes a mount and a finger seal that sealingly engages the second component. The mount includes a boss that sealingly engages the first component.
    Type: Application
    Filed: March 4, 2014
    Publication date: January 7, 2016
    Inventors: Mark Broomer, Carson A. Roy Thill, Timothy M. Davis, Anthony P. Cherolis, Robert L. Hazzard, Craig R. McGarrah, Conway Choung, Russell E. Keene
  • Publication number: 20160003080
    Abstract: A seal assembly is positioned within a cavity that extends circumferentially about an axial centerline of a gas turbine engine. The cavity includes a cavity wall. The seal assembly includes a seal and a seal protector. The seal extends circumferentially within the cavity. The seal protector extends circumferentially within the cavity. The seal protector is positioned between the seal and the cavity wall. The seal protector includes a locating feature that is operative to contact the seal to aid in axially positioning the seal protector relative to the seal.
    Type: Application
    Filed: February 20, 2014
    Publication date: January 7, 2016
    Applicant: United Technologies Corporation
    Inventor: Craig R. Mcgarrah
  • Publication number: 20150226132
    Abstract: A seal assembly for a gas turbine engine includes an engine static structure. First and second members fluidly separate cavities from one another. A seal assembly is captured by the engine structure. The seal assembly includes a carrier and a seal that engages the first member. The second member is captured by the carrier.
    Type: Application
    Filed: February 2, 2015
    Publication date: August 13, 2015
    Inventors: Carson A. Roy Thill, Mark Broomer, Timothy M. Davis, Craig R. McGarrah, Mark J. Rogers, Russell E. Keene, Anthony B. Swift