Patents by Inventor Jerry D. Hasten

Jerry D. Hasten 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: 4744729
    Abstract: A pressure-activated pump-off control for intermitting the operation of a low-production well. A pressure sensor and a series of three timers control the operation of the pump to maximize efficiency. A first fill-in timer disables the pump for a first time period during which fluids accumulate in the well. When the fill-in timer times out, both a second pump-up timer and the pump motor are energized. If the pressure sensor determines adequate minimum fluid pressure in the tubing, the pressure switch is opened, the second timer is de-energized, and control of the pump being transferred to a third pump-up timer in conjunction with the pressure sensor. When the pressure falls below the desired minimum, the pressure switch will remain closed and after a predetermined period of time corresponding to a desired number of strokes, the pump-off timer times out, shuts off the pump and re-energizes the fill-in timer for another cycle.
    Type: Grant
    Filed: September 11, 1986
    Date of Patent: May 17, 1988
    Assignee: Conoco Inc.
    Inventors: Jerry D. Hasten, James R. Clark