Patents by Inventor Dan R. Cheever

Dan R. Cheever 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 transducer
    Patent number: 4553080
    Abstract: A stepping motor is employed as a rotary position sensor by applying a bias current to one pair of its windings and sensing the signals produced by another pair of windings. The bias current produces a magnetic detent which defines the increments of rotation and the phase relationship of the signals produced by the other two windings indicates direction of rotation.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: November 12, 1985
    Assignee: Allen-Bradley Company
    Inventors: Lee E. Cannon, Peter C. Schmitt, Dan R. Cheever