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:
Jul. 07, 1987
Filed:
Oct. 23, 1985
Applicant:
Inventors:
Joseph E Vandevier, Claremore, OK (US);
John L Bearden, Claremore, OK (US);
William F Pranger, Claremore, OK (US);
Harold L Miller, Cary, IL (US);
Assignee:
Hughes Tool Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
4151992 ; 415104 ;
Abstract
A centrifugal submersible pump has wear resistant features to resist erosion due to sand laden fluid from a well. The pump has diffusers and impellers located within a housing. Wear resistant inserts are secured to the diffusers and impellers. The inserts include inserts with cylindrical surfaces for radial support and sealing, and inserts with flat transverse surfaces for thrust. The inserts are preferably formed of tungsten carbide and are harder than the material of the impellers and the diffusers.