Patents by Inventor Pascal DORAN

Pascal DORAN 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).

  • Method of manufacturing a mistuned rotor
    Patent number: 12385400
    Abstract: A method includes: obtaining a rotor having a hub and a plurality of blades protruding from the hub, the plurality of blades including first blades and second blades disposed in alternation around a central axis of the rotor, natural vibration frequencies of the first blades different from natural vibration frequencies of the second blades; determining that a difference between a first natural vibration frequency of a first blade of the first blades and a second natural vibration frequency of a second blade of the second blades is below a threshold; and modifying a shape of the first blade until the difference between the first natural vibration frequency and the second natural vibration frequency is at or above the threshold.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: August 12, 2025
    Assignee: PRATT & WHITNEY CANADA CORP.
    Inventors: Krishna Prasad Balike, Edwin Wong, Daniel Fudge, Ignatius Theratil, Paul Stone, Charles Mason, Karan Anand, Pascal Doran
  • METHOD OF MANUFACTURING A MISTUNED ROTOR
    Publication number: 20230349297
    Abstract: A method includes: obtaining a rotor having a hub and a plurality of blades protruding from the hub, the plurality of blades including first blades and second blades disposed in alternation around a central axis of the rotor, natural vibration frequencies of the first blades different from natural vibration frequencies of the second blades; determining that a difference between a first natural vibration frequency of a first blade of the first blades and a second natural vibration frequency of a second blade of the second blades is below a threshold; and modifying a shape of the first blade until the difference between the first natural vibration frequency and the second natural vibration frequency is at or above the threshold.
    Type: Application
    Filed: April 29, 2022
    Publication date: November 2, 2023
    Inventors: Krishna Prasad BALIKE, Edwin WONG, Daniel FUDGE, Ignatius THERATIL, Paul STONE, Charles MASON, Karan ANAND, Pascal DORAN