Patents by Inventor John G. Mason

John G. Mason 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).

  • Universal motor with secondary winding wound with the run field winding
    Patent number: 5063319
    Abstract: In a 2 pole universal motor for a circular saw a secondary winding provides dynamic braking. Both run and brake windings are split electrically with respect to the armature. All windings are double-ended and wiring and winding is arranged so that all windings may be terminated directly to fixed termination points, four at each end of the stator, providing for axially oriented plug-in connection of brushes at the commutator end and switch and line at the fan end. There are no jumpers within the stator.
    Type: Grant
    Filed: May 15, 1989
    Date of Patent: November 5, 1991
    Assignee: Black & Decker, Inc.
    Inventors: John G. Mason, John W. Miller, William D. Sauerwein, Stephen L. Vick