Patents by Inventor Douglas C. Hughes

Douglas C. Hughes 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).

  • System/method for synchronized shifting of a manually shifted transmission
    Patent number: 6361473
    Abstract: A controller-assisted, manually shifted transmission system (10) utilizes a shift inhibit mechanism (48) to inhibit out-of-synchronous shifts and unintended disengagement of ratios. An intent to shift (ITS) and target ratio (GRT) are determined from a shift lever position sensor (46) and a force sensor (50).
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: March 26, 2002
    Assignee: Eaton Corporation
    Inventors: Paul J. Mason, Alan C. Stine, Douglas C. Hughes, Karen L. Marx