Patents by Inventor Jack E. Piccardo

Jack E. Piccardo 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).

  • Patent number: 4023593
    Abstract: A hydraulic valve has a non-heating, low-power electric control. A main valve is movable in a main valve body to interconnect and isolate pressure, tank or drain and cylinder passages. Pressure to operate the main valve is controlled by pilot poppet valves having passages joined to the pressure and tank passages. The poppet pilot valves are individually actuated by the solenoids. Alternatively, the main valve body may have pressure and drain poppet valves arranged in pairs with similar, non-heating solenoid actuators for the pressure valves and cross-connected pressure actuation for the drain valves.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: May 17, 1977
    Assignee: The Rucker Company
    Inventor: Jack E. Piccardo