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:
Jun. 02, 2015
Filed:
Oct. 19, 2011
Applicants:
Alan Lin Kao, Tulsa, OK (US);
Lance Travis Robinson, Tulsa, OK (US);
David Wayne Chilcoat, Jenks, OK (US);
Inventors:
Alan Lin Kao, Tulsa, OK (US);
Lance Travis Robinson, Tulsa, OK (US);
David Wayne Chilcoat, Jenks, OK (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 35/04 (2006.01); F04D 13/08 (2006.01); F04D 29/24 (2006.01);
U.S. Cl.
CPC ...
F04B 35/04 (2013.01); F04D 13/08 (2013.01); F04D 29/245 (2013.01);
Abstract
An impeller vane includes at least one groove on a high pressure or working surface of the impeller vane to increase pump efficiency and reduce pump power requirements. The impeller vane includes a groove or a plurality of grooves formed on the high pressure surface of the vane. The grooves extend from a leading end of the vane to a trailing end of the vane. The grooves define ridges on either side of each groove that extend the length of the groove.