Patents by Inventor Thomas R. Gianni

Thomas R. Gianni 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).

  • Means and method for stepping motor stabilization
    Patent number: 4647829
    Abstract: A mid-range stabilization circuit for use in a multiphase stepping motor control system having motor current controllers responsive to first and second reference signal inputs, the current controllers providing a level of current to the motor phases proportional to the reference signals. The stabilization circuit includes means for measuring the levels of the reference signals and means for limiting the levels of the reference signals such that the motor current controllers can provide current chopping when the motor is operating at a mid-range velocity.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: March 3, 1987
    Assignee: The Superior Electric Company
    Inventors: Irving J. Giguere, Thomas R. Gianni