Patents by Inventor Donald R. Rippin

Donald R. Rippin 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).

  • Starting control system for synchronous motors
    Patent number: 3959702
    Abstract: A starting control system for synchronous motors is provided in which the usual separately mounted discharge resistor is eliminated. A relatively high resistance coil of small size is wound on each field pole, in addition to the normal field winding, and these coils are connected together and utilized as a discharge resistor during starting of the motor.
    Type: Grant
    Filed: August 17, 1973
    Date of Patent: May 25, 1976
    Assignee: Westinghouse Electric Corporation
    Inventors: Gurney L. Godwin, Donald R. Rippin