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.

Date of Patent:
May. 31, 2016

Filed:

Jul. 19, 2013
Applicant:

Baker Hughes Incorporated, Houston, TX (US);

Inventors:

Steven K. Tetzlaff, Owasso, OK (US);

Dan L. Adams, Claremore, OK (US);

Dewayne May, Broken Arrow, OK (US);

Assignee:

Baker Hughes Incorporated, Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 1/04 (2006.01); F04D 13/10 (2006.01); F04D 29/041 (2006.01); E21B 4/00 (2006.01);
U.S. Cl.
CPC ...
F04D 1/04 (2013.01); F04D 13/10 (2013.01); F04D 29/0413 (2013.01); E21B 4/003 (2013.01); F16C 2360/44 (2013.01);
Abstract

An electrical submersible pump assembly includes a centrifugal pump having impellers and diffusers. A thrust runner is coupled to a motor shaft for rotation along with the impellers. The runner receives thrust from at least one of the impellers and transfers the thrust to a bushing non rotatably mounted in one of the diffusers. The bushing has a thrust transferring end adjacent a thrust receiving shoulder in the diffuser. The bushing is axially movable in the receptacle. An annular spring located between the thrust receiving shoulder in the receptacle and the thrust transferring end of the bushing urges the bushing away from the thrust receiving shoulder.


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