Patents by Inventor Scott Alan Kruppa

Scott Alan Kruppa 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).

  • Retrievable downhole pumping system
    Patent number: 7419007
    Abstract: A pumping system 10 is provided for pumping fluid from a downhole well to the surface through a production tubing string well. A rotatable drive rod 18 extends from the surface to power the downhole pump, and includes a plurality of rod couplings. The downhole pump includes a pump stator 22 and a rotor 24 rotatable within the pump stator. A lifting member 36 provided at the upper end of the stator is engaged by a drive coupling 34 to retrieve the pump from the well. The lifting member has an internal shoulder 44 tapered radially inwardly and upwardly, such that a rod coupling engages the internal shoulder and passes through the lifting member as the rotor is pulled upward.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: September 2, 2008
    Assignee: Robbins & Myers Energy Systems, L.P.
    Inventors: Iain R. Belcher, Michael J. Guidry, Jr., Scott Alan Kruppa, Jason Clay Kollatschny