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:
Sep. 29, 1981

Filed:

Aug. 20, 1979
Applicant:
Inventor:

John W Erickson, Huntington Beach, CA (US);

Assignee:

Kobe, Inc., City of Commerce, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417 53 ; 417 88 ; 417247 ; 417391 ; 417405 ;
Abstract

An improved power fluid driven turbo pump is provided for pumping oil wells of the type having, from time-to-time, significant quantities of gas included in the oil so that wide variations in the density of the medium to be pumped may be expected to be encountered. Two separate pumping units driven by the same power fluid are employed, one of which is designed to efficiently compress and pump gas, and the other is designed to efficiently pump normal density fluids. Since the pumps are disposed in series, the combined efficiency of the pumps is substantially unchanged due to changes in density of the fluid to be pumped and remains at a uniformly high level.


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