Patents Assigned to Milam/Clardy, Inc.
  • Patent number: 4871302
    Abstract: A piston-driven down hole pump and a method for using the same to lift fluid on both its upstroke and downstroke. The pump is powered by a waste water injection pump. A drive piston connected to a production piston and three-way valve power the down hole pump through the steady flow of the power fluid from the injection pump. The power fluid is exhausted into the well annulus and rises to the surface comingled with the fluid.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: October 3, 1989
    Assignee: Milam/Clardy, Inc.
    Inventors: T. J. Clardy, Henry Meno