Patents by Inventor John I. Cleek

John I. Cleek 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).

  • Position control for hybrid servomechanisms
    Patent number: 5543696
    Abstract: A hybrid servomechanism includes a speed control, a rotor position control and a brushless motor. When enabled, the position control commands a stationary stator mmf vector, allowing the motor's rotor to rotate until load torque and motor torque are balanced. This position control eliminates limit cycle operation and allows the motor to compensate for backdriving caused by external loads.
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: August 6, 1996
    Assignee: AlliedSignal Inc.
    Inventors: Colin E. Huggett, John I. Cleek