Patents by Inventor Eli N. Ross

Eli N. Ross 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).

  • Seal seat insert for gas turbine engines
    Patent number: 11859497
    Abstract: A seal assembly for a gas turbine engine may include a seal body coupled to an engine static structure of the gas turbine engine and a seal seat insert coupled to a radially extending portion of a shaft of the gas turbine engine. The seal body may be generally configured to be biased into contact with the seal seat insert to provide a sealing pressure between the seal body and the seal seat insert. In various embodiments, the seal seat insert is made from a ceramic material or a ceramic matrix composite.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: January 2, 2024
    Assignee: RTX Corporation
    Inventors: Pantcho P. Stoyanov, Eli N. Ross
  • Heat treatment and stress relief for solid-state welded nickel alloys
    Patent number: 11826849
    Abstract: A joining method includes performing a first heat treatment step on a first superalloy workpiece and a second superalloy workpiece wherein at least one of the first and second superalloy workpieces include a gamma matrix phase and a gamma-prime precipitate phase. The first and second superalloy workpieces are joined using a solid state joining process, subjected to a post-weld stress relief operation and a final aging heat treatment.
    Type: Grant
    Filed: February 11, 2021
    Date of Patent: November 28, 2023
    Assignee: RTX Corporation
    Inventors: Ashwin Raghavan, Enrique E. Montero, Max A. Kaplan, Eli N. Ross, Mario P. Bochiechio
  • SEALS AND METHODS OF MAKING SEALS
    Publication number: 20230184124
    Abstract: A method includes providing a powdered high entropy alloy and forming the powdered high entropy alloy into a seal body with a heat source. The seal body extends between a leading edge and a trailing edge and includes a first component contact surface adjacent the leading edge and a second component contact surface adjacent the trailing edge. The seal body is operable at temperatures in excess of 700° C.
    Type: Application
    Filed: February 10, 2023
    Publication date: June 15, 2023
    Inventors: Pantcho P. Stoyanov, Eli N. Ross
  • Seals and methods of making seals
    Patent number: 11643939
    Abstract: A tribological and creep resistant system configured to operate at temperatures in excess of 700° C. A seal body extends between a leading edge and a trailing edge. A first component contact surface is adjacent the leading edge and a second component contact surface is adjacent the trailing edge. The seal body is formed from a high entropy alloy.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: May 9, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Pantcho P. Stoyanov, Eli N. Ross
  • SEAL SEAT INSERT FOR GAS TURBINE ENGINES
    Publication number: 20220412223
    Abstract: A seal assembly for a gas turbine engine may include a seal body coupled to an engine static structure of the gas turbine engine and a seal seat insert coupled to a radially extending portion of a shaft of the gas turbine engine. The seal body may be generally configured to be biased into contact with the seal seat insert to provide a sealing pressure between the seal body and the seal seat insert. In various embodiments, the seal seat insert is made from a ceramic material or a ceramic matrix composite.
    Type: Application
    Filed: March 28, 2022
    Publication date: December 29, 2022
    Applicant: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Pantcho P. Stoyanov, Eli N. Ross
  • Seal seat insert for gas turbine engines
    Patent number: 11339675
    Abstract: A seal assembly for a gas turbine engine may include a seal body coupled to an engine static structure of the gas turbine engine and a seal seat insert coupled to a radially extending portion of a shaft of the gas turbine engine. The seal body may be generally configured to be biased into contact with the seal seat insert to provide a sealing pressure between the seal body and the seal seat insert. In various embodiments, the seal seat insert is made from a ceramic material or a ceramic matrix composite.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: May 24, 2022
    Assignee: Raytheon Technologies Corporation
    Inventors: Pantcho P. Stoyanov, Eli N. Ross
  • SEALS AND METHODS OF MAKING SEALS
    Publication number: 20220065122
    Abstract: A tribological and creep resistant system configured to operate at temperatures in excess of 700° C. A seal body extends between a leading edge and a trailing edge. A first component contact surface is adjacent the leading edge and a second component contact surface is adjacent the trailing edge. The seal body is formed from a high entropy alloy.
    Type: Application
    Filed: September 2, 2020
    Publication date: March 3, 2022
    Inventors: Pantcho P. Stoyanov, Eli N. Ross
  • HEAT TREATMENT AND STRESS RELIEF FOR SOLID-STATE WELDED NICKEL ALLOYS
    Publication number: 20210316392
    Abstract: A joining method includes performing a first heat treatment step on a first superalloy workpiece and a second superalloy workpiece wherein at least one of the first and second superalloy workpieces include a gamma matrix phase and a gamma-prime precipitate phase. The first and second superalloy workpieces are joined using a solid state joining process, subjected to a post-weld stress relief operation and a final aging heat treatment.
    Type: Application
    Filed: February 11, 2021
    Publication date: October 14, 2021
    Inventors: Ashwin Raghavan, Enrique E. Montero, Max A. Kaplan, Eli N. Ross, Mario P. Bochiechio
  • SEAL SEAT INSERT FOR GAS TURBINE ENGINES
    Publication number: 20210079801
    Abstract: A seal assembly for a gas turbine engine may include a seal body coupled to an engine static structure of the gas turbine engine and a seal seat insert coupled to a radially extending portion of a shaft of the gas turbine engine. The seal body may be generally configured to be biased into contact with the seal seat insert to provide a sealing pressure between the seal body and the seal seat insert. In various embodiments, the seal seat insert is made from a ceramic material or a ceramic matrix composite.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 18, 2021
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Pantcho P. Stoyanov, Eli N. Ross
  • Heat treatment and stress relief for solid-state welded nickel alloys
    Patent number: 10946476
    Abstract: A joining method includes performing a first heat treatment step on a first superalloy workpiece and a second superalloy workpiece wherein at least one of the first and second superalloy workpieces include a gamma matrix phase and a gamma-prime precipitate phase. The first and second superalloy workpieces are joined using a solid state joining process, subjected to a post-weld stress relief operation and a final aging heat treatment.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: March 16, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Ashwin Raghavan, Enrique E. Montero, Max A. Kaplan, Eli N. Ross, Mario P. Bochiechio
  • HEAT TREATMENT AND STRESS RELIEF FOR SOLID-STATE WELDED NICKEL ALLOYS
    Publication number: 20180326533
    Abstract: A joining method includes performing a first heat treatment step on a first superalloy workpiece and a second superalloy workpiece wherein at least one of the first and second superalloy workpieces include a gamma matrix phase and a gamma-prime precipitate phase. The first and second superalloy workpieces are joined using a solid state joining process, subjected to a post-weld stress relief operation and a final aging heat treatment.
    Type: Application
    Filed: May 11, 2017
    Publication date: November 15, 2018
    Inventors: Ashwin Raghavan, Enrique E. Montero, Max A. Kaplan, Eli N. Ross, Mario P. Bochiechio
  • Hardened silver coated journal bearing surfaces and method
    Patent number: 9726271
    Abstract: An article comprises a metal alloy substrate and a plated wear interface layer disposed over a surface of the metal alloy substrate. The wear interface layer has a chemical composition including between about 0.005 wt % and about 0.050 wt % of antimony (Sb), and the balance silver (Ag) and incidental impurities.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: August 8, 2017
    Assignee: United Technologies Corporation
    Inventors: Thomas R. Hanlon, William P. Ogden, Eli N. Ross
  • HARDENED SILVER COATED JOURNAL BEARING SURFACES AND METHOD
    Publication number: 20150300477
    Abstract: An article comprises a metal alloy substrate and a plated wear interface layer disposed over a surface of the metal alloy substrate. The wear interface layer has a chemical composition including between about 0.005 wt % and about 0.050 wt % of antimony (Sb), and the balance silver (Ag) and incidental impurities.
    Type: Application
    Filed: July 1, 2015
    Publication date: October 22, 2015
    Inventors: Thomas R. Hanlon, William P. Ogden, Eli N. Ross
  • Hardened silver coated journal bearing surfaces and method
    Patent number: 9074681
    Abstract: An article comprises a metal alloy substrate and a plated wear interface layer disposed over a surface of the metal alloy substrate. The wear interface layer has a chemical composition including between about 0.005 wt % and about 0.050 wt % of antimony (Sb), and the balance silver (Ag) and incidental impurities.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: July 7, 2015
    Assignee: United Technologies Corporation
    Inventors: Thomas R. Hanlon, William P. Ogden, Eli N. Ross
  • HARDENED SILVER COATED JOURNAL BEARING SURFACES AND METHOD
    Publication number: 20140141929
    Abstract: An article comprises a metal alloy substrate and a plated wear interface layer disposed over a surface of the metal alloy substrate. The wear interface layer has a chemical composition including between about 0.005 wt % and about 0.050 wt % of antimony (Sb), and the balance silver (Ag) and incidental impurities.
    Type: Application
    Filed: November 20, 2012
    Publication date: May 22, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Thomas R. Hanlon, William P. Ogden, Eli N. Ross
  • METHOD OF APPLYING A WEAR RESISTANT COATING
    Publication number: 20130316086
    Abstract: A method of applying a wear-resistant coating comprises mixing about 75% to about 85% by weight chromium carbide and about 15% to about 25% by weight nickel chromium to form a chromium carbide-nickel chromium mixture, and simultaneously heating the chromium carbide-nickel chromium mixture to about 1371 degrees Celsius to about 2204 degrees Celsius and applying the chromium carbide-nickel chromium mixture at a velocity in a range of about 305 meters feet per second to about 915 meters per second by high velocity oxygen fuel (HVOF) spraying.
    Type: Application
    Filed: August 8, 2013
    Publication date: November 28, 2013
    Applicant: United Technologies Corporation
    Inventors: Eli N. Ross, Paul H. Zajchowski
  • Wear resistant coating
    Patent number: 8530050
    Abstract: A wear-resistant component of a carbon seal includes a surface and a coating applied onto the surface. The coating is a chromium carbide-nickel chromium composition constituting between about 75% and about 85% by weight chromium carbide and between about 15% and about 25% by weight nickel chromium. The chromium carbide-nickel chromium composition is applied onto the surface by high velocity oxy-fuel spraying (HVOF).
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: September 10, 2013
    Assignee: United Technologies Corporation
    Inventors: Eli N. Ross, Paul H. Zajchowski
  • Wear resistant coating
    Publication number: 20080292897
    Abstract: A wear-resistant component of a carbon seal includes a surface and a coating applied onto the surface. The coating is a chromium carbide-nickel chromium composition constituting between about 75% and about 85% by weight chromium carbide and between about 15% and about 25% by weight nickel chromium. The chromium carbide-nickel chromium composition is applied onto the surface by high velocity oxy-fuel spraying (HVOF).
    Type: Application
    Filed: May 22, 2007
    Publication date: November 27, 2008
    Applicant: United Technologies Corporation
    Inventors: Eli N. Ross, Paul H. Zajchowski