Patents by Inventor Joe E. Dooling

Joe E. Dooling 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).

  • Oil well jack
    Patent number: 4519293
    Abstract: The invention relates to an oil well jack having a walking beam mounted on a frame for motion in a vertical plane; and a plurality of hydraulic actuators connected to move the walking beam. The amplitude of movement of the beam as well as the frequency of the stroke are adjustable through regulation and control of the hydraulic system.
    Type: Grant
    Filed: June 23, 1983
    Date of Patent: May 28, 1985
    Inventor: Joe E. Dooling