Patents by Inventor James O. Strader

James O. Strader 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).

  • Electromagnetic control assembly and method for a viscous fluid fan clutch
    Patent number: 4893703
    Abstract: A fan clutch assembly for a vehicle includes an electromagnetic control assembly for actuating a rotatable valve plate. A rotatable shaft is connected to the valve plate. A ferromagnetic element is slidably mounted on the shaft. When an electromagnetic coil is energized, the resulting flux attracts the ferromagnetic element. As the ferromagnetic element slides, it is rotated to cause rotation of the shaft, thereby opening the valve plate.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: January 16, 1990
    Assignee: General Motors Corporation
    Inventors: Lawrence C. Kennedy, James O. Strader