Patents by Inventor Eugene Scott Murphy

Eugene Scott Murphy 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).

  • Hydraulic control system
    Patent number: 3935707
    Abstract: A hydraulic control system includes a generating circuit for providing power to a work function. A driving apparatus operates the generating circuit. A control circuit is connected to the generating circuit and the driving apparatus for permitting delivery of power to the work function when the driving apparatus is operating up to a predetermined speed. The control circuit also stops delivery of power to the work function when the driving apparatus runs above the predetermined speed.
    Type: Grant
    Filed: July 22, 1974
    Date of Patent: February 3, 1976
    Assignee: General Signal Corporation
    Inventors: Eugene Scott Murphy, Clyde Bennett Stevens