Patents by Inventor Andrew A. Friebohle

Andrew A. Friebohle 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).

  • SWITCHED RELUCTANCE MOTOR MANUFACTURE WITH VARIABLE WIRE TWIST RATE
    Publication number: 20240097516
    Abstract: An assembly for an electric motor includes a stator including a plurality of stator poles, each stator pole including a base end and a rotor end opposite the base end, and an electromagnetic coil around each stator pole. The coil around each stator pole includes at least two electrically conductive wires wound into multiple wire turns around the stator pole that extend from the base end of the stator pole to the rotor end of the stator pole. Wire turns of the coil closer to the rotor end of the stator pole are twisted and wire turns of the coil closer to the base end of the stator pole are not twisted.
    Type: Application
    Filed: September 19, 2022
    Publication date: March 21, 2024
    Applicant: Caterpillar Inc.
    Inventors: Carlos E. Nino Baron, Yash Bharat Bhatia, Bradford Allyn Kough, Andrew A. Friebohle
  • Twisted coil structures for an electric motor and systems, components, assemblies, and methods thereof
    Patent number: 11705768
    Abstract: A coil winding for an electric motor, and systems, components, assemblies, and methods thereof, can comprise turns of a predetermined number of electrically conductive wires on a first side of the coil winding twisted together in a clockwise direction; and turns of the predetermined number of the electrically conductive wires on a second side of the coil winding opposite the first side twisted together in a counterclockwise direction.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: July 18, 2023
    Assignee: Caterpillar Inc.
    Inventors: Rodwan T. Adra, Brian R. Janes, Andrew Friebohle, Edwin B. Schultz
  • TWISTED COIL STRUCTURES FOR AN ELECTRIC MOTOR AND SYSTEMS, COMPONENTS, ASSEMBLIES, AND METHODS THEREOF
    Publication number: 20220376574
    Abstract: A coil winding for an electric motor, and systems, components, assemblies, and methods thereof, can comprise turns of a predetermined number of electrically conductive wires on a first side of the coil winding twisted together in a clockwise direction; and turns of the predetermined number of the electrically conductive wires on a second side of the coil winding opposite the first side twisted together in a counterclockwise direction.
    Type: Application
    Filed: May 18, 2021
    Publication date: November 24, 2022
    Applicant: Caterpillar Inc.
    Inventors: Rodwan T. ADRA, Brian R. JANES, Andrew FRIEBOHLE, Edwin B. SCHULTZ