Patents by Inventor William Ralph Simpson

William Ralph Simpson 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).

  • Torque converter assembly
    Patent number: 6508346
    Abstract: A torque converter assembly 10 includes a clutch assembly 36 having a sealed chamber 39 into which oil is selectively communicated, effective to cause a piston 40 to selectively engage a plate assembly 30.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: January 21, 2003
    Assignee: Ford Global Technologies, Inc.
    Inventor: William Ralph Simpson