Patents by Inventor William C. Markison

William C. Markison 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).

  • Pulsing type hall effect rotary switch
    Patent number: 4054861
    Abstract: A Hall effect rotary switch includes a frame and a parallel rotor and stator mounted in the frame. There are a plurality of peripherally unequally spaced Hall effect sensing circuits mounted on the stator and a plurality of localized magnetic areas on the rotor. Movement of the magnetic areas adjacent the Hall effect sensing circuits provides output signals therefrom, which signals are used to determine the relative position of the rotor and stator. The localized magnetic areas on the rotor cooperate with detent portions of the stator to form a magnetic detent.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: October 18, 1977
    Assignee: Oak Industries Inc.
    Inventor: William C. Markison