The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 13, 2018
Filed:
Nov. 14, 2014
Baker Hughes Incorporated, Houston, TX (US);
David Garrett, Bartlesville, OK (US);
Shawn N. Gunter, Owasso, OK (US);
Baker Hughes, a GE Company, LLC, Houston, TX (US);
Abstract
A well pump assembly has an upper plunger and a lower plunger. A working fluid conduit extends between the upper and lower plunger. An upper piston in the working fluid conduit is connected with the upper plunger. A lower piston in the working fluid conduit is connected with the lower plunger. A downstroke working fluid is located between the upper and lower pistons in the working fluid conduit. An upstroke conduit extends between an upper port in the working fluid conduit above the upper piston and a lower port in working fluid conduit below the lower piston. An upstroke working fluid fills the upstroke conduit and the working fluid conduit above the upper piston and below the lower piston.