Patents by Inventor Monroe J. Willner

Monroe J. Willner 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).

  • Magnetic field intensity measuring device with frequency change indication
    Patent number: 4305034
    Abstract: A device powered by a DC source produces an output signal the frequency of which changes as a function of changes in external magnetic fields sensed by such device. A pair of non-linear amplifiers are interconnected so that the output of one amplifier is the input of the other amplifier. An inductive sensor is connected between the outputs of the amplifiers. The inductive sensor has an elongated magnetic core and a coil is wound on the core. The voltages at the outputs of the amplifiers, across the inductive sensor, switch between zero and the full voltage of the DC source.
    Type: Grant
    Filed: April 9, 1979
    Date of Patent: December 8, 1981
    Assignee: Hughes Aircraft Company
    Inventors: James C. Long, Monroe J. Willner, William R. Good