Patents by Inventor Nathan G. Nelson

Nathan G. Nelson 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).

  • Downhole motor driven reciprocating well pump
    Patent number: 10309381
    Abstract: A submersible well pump assembly has a pump housing with a pump discharge on upper end. A pump barrel is located within the pump housing, defining an annular passage between the barrel and the pump housing. A plunger is reciprocally carried in the barrel. A motor mounted below the pump housing and operatively couples to the plunger causes the plunger to reciprocate between an upstroke and a down-stroke. A valve and porting arrangement directs well fluid in the barrel below the plunger into the annular passage and out the discharge during a down stroke of the plunger. The valve and porting arrangement admits well fluid into the barrel below the plunger during the up stroke of the plunger. A connecting rod extends between the motor and the plunger. The connecting rod is in tension during the down-stroke.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: June 4, 2019
    Assignee: Baker Hughes, a GE Company, LLC
    Inventors: Carroll Scott DeArman, Carlos A. Prieto, Gary L. Williams, David L. Garrett, Shawn N. Gunter, Nathan G. Nelson
  • Downhole Motor Driven Reciprocating Well Pump
    Publication number: 20150176574
    Abstract: A submersible well pump assembly has a pump housing with a pump discharge on upper end. A pump barrel is located within the pump housing, defining an annular passage between the barrel and the pump housing. A plunger is reciprocally carried in the barrel. A motor mounted below the pump housing and operatively couples to the plunger causes the plunger to reciprocate between an upstroke and a down-stroke. A valve and porting arrangement directs well fluid in the barrel below the plunger into the annular passage and out the discharge during a down stroke of the plunger. The valve and porting arrangement admits well fluid into the barrel below the plunger during the up stroke of the plunger. A connecting rod extends between the motor and the plunger. The connecting rod is in tension during the down-stroke.
    Type: Application
    Filed: December 22, 2014
    Publication date: June 25, 2015
    Inventors: Carroll Scott DeArman, Carlos A. Prieto, Gary L. Williams, David L. Garrett, Shawn N. Gunter, Nathan G. Nelson