Patents by Inventor Joe Chester Lambert

Joe Chester Lambert 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).

  • Braking mode control for an electric traction motor
    Patent number: 3995204
    Abstract: A control system for a DC electric traction motor which eliminates cogging of the motor during transition from a driving to a plugging mode. The system incorporates apparatus for comparing motor armature current to a plugging current reference voltage which voltage is initially applied as a ramp function to thereby provide a smooth transition into braking.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: November 30, 1976
    Assignee: General Electric Company
    Inventors: Charles Edward Konrad, Joe Chester Lambert