Patents by Inventor William A. Powers, JR.

William A. Powers, JR. 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).

  • Identification and mapping of fuel cell cathode valve ice breaking stall torque capability
    Patent number: 11372046
    Abstract: A method for identifying and mapping a maximum instantaneous stall torque capability of a fuel cell cathode valve includes: maintaining a temperature of an electric motor at a predetermined temperature, wherein the predetermined temperature is equal to or less than a freezing point of water (0° C.), and the electric motor includes motor brushes, commutator poles, a stator, a rotor rotatable with respect to the stator, and a shaft coupled to the rotor; locking the shaft of the electric motor such that the shaft is incapable of rotating, thereby fixing the shaft at a locked position; mounting the shaft of the electric motor to a dynamometer; supplying electrical energy to the electric motor; monitoring an instantaneous stall torque of the electric motor; and monitoring a rotor electrical resistance.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: June 28, 2022
    Assignee: GM Global Technology Operations LLC
    Inventors: William A. Powers, Jr., Rajeev Vyas, Stephen G. Poulos, Ashish V. Gadre
  • IDENTIFICATION AND MAPPING OF FUEL CELL CATHODE VALVE ICE BREAKING STALL TORQUE CAPABILITY
    Publication number: 20210072316
    Abstract: A method for identifying and mapping a maximum instantaneous stall torque capability of a fuel cell cathode valve includes: maintaining a temperature of an electric motor at a predetermined temperature, wherein the predetermined temperature is equal to or less than a freezing point of water (0° C.), and the electric motor includes motor brushes, commutator poles, a stator, a rotor rotatable with respect to the stator, and a shaft coupled to the rotor; locking the shaft of the electric motor such that the shaft is incapable of rotating, thereby fixing the shaft at a locked position; mounting the shaft of the electric motor to a dynamometer; supplying electrical energy to the electric motor; monitoring an instantaneous stall torque of the electric motor; and monitoring a rotor electrical resistance.
    Type: Application
    Filed: September 10, 2019
    Publication date: March 11, 2021
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: William A. Powers, JR., Rajeev Vyas, Stephen G. Poulos, Ashish V. Gadre