Patents by Inventor Donald E. McKee

Donald E. McKee 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).

  • Digital position sensor including L/C sensing oscillator
    Patent number: 4310807
    Abstract: A position sensing element forms a reactance (inductive or capacitive) in the L/C tuning circuit of an oscillator. The reactance varies as a function of the position of the sensing element relative to a predetermined object. This causes the resonant frequency of the oscillator to vary as a function of the position of the sensing element. The output of the oscillator is squared to provide a square wave signal, the frequency of which is a direct function of the position of the sensing element relative to the predetermined object.
    Type: Grant
    Filed: December 19, 1979
    Date of Patent: January 12, 1982
    Assignee: Rockwell International Corporation
    Inventor: Donald E. McKee