Patents by Inventor Robert L. Chess

Robert L. Chess 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).

  • Transmission control providing sequentially engaged high and low speed clutches
    Patent number: 4848530
    Abstract: A clutch control for a multi-speed vehicle transmission having operator selected, hydraulically operatable clutches for the shifting of direction and speed includes a valve means which automatically engages a higher and a lower speed clutch in sequence when a direction shift is made. If the direction is shifted while the transmission is shifted to a lower speed range the next higher speed clutch will be momentarily engaged before the lower speed clutch is engaged.
    Type: Grant
    Filed: September 6, 1988
    Date of Patent: July 18, 1989
    Assignee: Hyster Company
    Inventor: Robert L. Chess