Patents by Inventor Terrance P. Lynch

Terrance P. Lynch 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 range selector valve
    Patent number: 4742731
    Abstract: A transmission includes a range selector valve that eliminates the possibility of unintentional simultaneous multiple gear engagement by a fail safe arrangement of fluid flow paths and valving. A pair of parallel paths connect to clutches that operate a high-low power shift transmission and a multiple speed power shift main transmission. The fluid flow path to the multiple speed power shift main transmission clutches is valved to select either a first or second group of speed/direction settings. Each of these groups then includes at least one valve to select a particular transmission speed or direction setting.
    Type: Grant
    Filed: December 18, 1986
    Date of Patent: May 10, 1988
    Assignee: Payhauler Corp.
    Inventors: Joseph L. Eldridge, Terrance P. Lynch