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:
Sep. 14, 2010
Filed:
Oct. 11, 2006
Applicants:
Evan Noble, Edmonton, CA;
Roland Moneta, Vermilion, CA;
Lonnie Dunn, Sherwood Park, CA;
Inventors:
Assignee:
Weatherford/Lamb, Inc., Houston, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 15/14 (2006.01); F16K 17/02 (2006.01); F04B 49/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
Progressive cavity pump assemblies including one or more mechanisms adapted to regulate intake pressure of the main pump between a minimum intake pressure and a maximum intake pressure. In one embodiment, the mechanism is a sealing member configured to open at a threshold pressure to discharge wellbore fluid and close after falling below the threshold pressure. In an alternative embodiment, the mechanism may be a regulator assembly that adjusts the volume of output from the charge pump to the interconnect according to the pressure in the interconnect.