Patents by Inventor William B. Tucker

William B. Tucker 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).

  • Direct-current stepping motor drive system
    Patent number: 3940677
    Abstract: A motor drive system including a direct-current motor arranged in tandem with a stepping motor. The stepping motor is energized by conventional means. The direct-current motor is energized by a constant-current drive means, which is responsive to signals from magnitude and direction sensing means. The direct-current motor and stepping motor coact to provide a controlled mechanical output.
    Type: Grant
    Filed: November 6, 1973
    Date of Patent: February 24, 1976
    Assignee: Photocircuits Division of Kollmorgen Corporation
    Inventors: Ronald Morino, William B. Tucker, Raymond J. Keogh