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:
Oct. 19, 2010
Filed:
Jul. 02, 2008
Applicant:
Billy W. White, Spring, TX (US);
Inventor:
Billy W. White, Spring, TX (US);
Assignee:
Robbins & Myers Energy Systems L.P., Willis, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 4/02 (2006.01); F03B 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A generator () is provided for positioning downhole in a drill string () to generate power powering one or more downhole tools (). The generator includes a progressive cavity housing () and a progressive cavity rotor () which rotates in response to fluid passing through the progressive cavity housing. A restriction () in the annulus downstream from the ports controls the fluid flow in the annulus and past the restriction, and thereby the fluid flow through the progressive cavity housing. The generator may provide either hydraulic or electrical power, or both, powering the one or more tools.