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:
Aug. 18, 2009
Filed:
Mar. 10, 2006
Ryan P. Semple, Broken Arrow, OK (US);
Robert C. Delong, Owasso, OK (US);
Christopher Brunner, Owasso, OK (US);
Arturo L. Poretti, Claremore, OK (US);
Terry W. Shafer, Broken Arrow, OK (US);
Ryan P. Semple, Broken Arrow, OK (US);
Robert C. DeLong, Owasso, OK (US);
Christopher Brunner, Owasso, OK (US);
Arturo L. Poretti, Claremore, OK (US);
Terry W. Shafer, Broken Arrow, OK (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A centrifugal pump has a stationary diffuser with a bore. A thrust bearing has a tubular portion that inserts into the bore. The thrust bearing has an external shoulder that contacts a support surface in the bore of the diffuser for transmitting downward thrust from an upstream impeller to the diffuser. The thrust bearing has an internal shoulder for transmitting upward thrust from a downstream impeller to the diffuser.