Patents by Inventor David E. Gibbons

David E. Gibbons 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).

  • Automatic range shift arrangement
    Patent number: 5263379
    Abstract: An automatic range shift control system for automatically controlling range section (14) shifting in an otherwise manually shifted range type compound transmission (10) is provided. A sensor (100) senses a value indicative of vehicle ground speed and provides a signal (100A) which is compared to a reference value. If the signal is greater than the reference, an actuator (96) is urged to engage the high speed range ratio and if the signal is less than the reference, the actuator is urged to engage the low speed range ratio.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: November 23, 1993
    Assignee: Eaton Corporation
    Inventors: Ian M. Newbigging, David E. Gibbons