Patents by Inventor William A. McRoy

William A. McRoy 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).

  • Starter motor energization circuit for an internal combustion engine
    Patent number: 5475270
    Abstract: An energizing circuit for a permanent magnet internal combustion starter motor having a pull-in coil, a hold-in coil and plunger contacts connected to a single terminal which is switchable between a direct current power source and ground which are magnetically independent.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: December 12, 1995
    Assignee: Ford Motor Company
    Inventor: William A. McRoy