Patents by Inventor Robert L. Branch

Robert L. Branch 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).

  • Method and apparatus for testing windings or the like
    Patent number: 3932811
    Abstract: Apparatus and method for testing windings, as for determining proper winding connections, by sensing the magnetic fields produced at the windings when energized by a time varying signal. Output signals are produced in dependence upon the polarity or direction of the magnetic fields. These signals are compared with a clock signal synchronized to the energizing signal to obtain an indication as to the phase relationship of the magnetic fields.
    Type: Grant
    Filed: February 22, 1972
    Date of Patent: January 13, 1976
    Assignee: Avtron Manufacturing, Inc.
    Inventor: Robert L. Branch