Patents by Inventor Stephane Bigras

Stephane Bigras 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).

  • Turbine blade airfoil profile
    Patent number: 11867081
    Abstract: A turbine blade for a gas turbine engine has an airfoil including leading and trailing edges joined by spaced-apart pressure and suction sides to provide an external airfoil surface extending from a platform in a spanwise direction to a tip. The external airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil defined by a set of Cartesian coordinates set forth in Table 1, the Cartesian coordinates provided by an axial coordinate scaled by a local axial chord, a circumferential coordinate scaled by a local axial chord, and a span location.
    Type: Grant
    Filed: January 26, 2023
    Date of Patent: January 9, 2024
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Abdulhalim Twahir, Panagiota Tsifourdaris, Daniel Lecuyer, Masoud Roshan Fekr, Stephane Bigras
  • Turbine blade airfoil profile
    Patent number: 11578602
    Abstract: A turbine blade for a gas turbine engine has an airfoil including leading and trailing edges joined by spaced-apart pressure and suction sides to provide an exterior airfoil surface extending from a platform in a spanwise direction to a tip. The external airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil described by a set of Cartesian coordinates set forth in Table 1, the Cartesian coordinates provided by an axial coordinate scaled by a local axial chord, a circumferential coordinate scaled by a local axial chord, and a span location.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: February 14, 2023
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Fariba Ajalli, Panagiota Tsifourdaris, Lorenzo Sanzari, Francis Gemme, Stephane Bigras, William Mindenhall, Masoud Roshan Fekr
  • Turbine blade airfoil profile
    Patent number: 11578601
    Abstract: A turbine blade for a gas turbine engine has an airfoil including leading and trailing edges joined by spaced-apart pressure and suction sides to provide an external airfoil surface extending from a platform in a spanwise direction to a tip. The external airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil defined by a set of Cartesian coordinates set forth in Table 1, the Cartesian coordinates provided by an axial coordinate scaled by a local axial chord, a circumferential coordinate scaled by a local axial chord, and a span location.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: February 14, 2023
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Abdulhalim Twahir, Panagiota Tsifourdaris, Francis Gemme, Stephane Bigras, William Mindenhall
  • Turbine blade airfoil profile
    Patent number: 11512595
    Abstract: A turbine blade for a gas turbine engine has an airfoil including leading and trailing edges joined by spaced-apart pressure and suction sides to provide an external airfoil surface extending from a platform in a spanwise direction to a tip. The external airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil defined by a set of Cartesian coordinates set forth in Table 1, the Cartesian coordinates provided by an axial coordinate scaled by a local axial chord, a circumferential coordinate scaled by a local axial chord, and a span location.
    Type: Grant
    Filed: February 4, 2022
    Date of Patent: November 29, 2022
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Fariba Ajalli, Panagiota Tsifourdaris, Michael Paolucci, Othmane Leghzaouni, Stephane Bigras