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:
Aug. 31, 2010
Filed:
Apr. 22, 2008
Applicants:
Billy W. White, Spring, TX (US);
Michael J. Guidry, Jr., Hockley, TX (US);
Inventors:
Billy W. White, Spring, TX (US);
Michael J. Guidry, Jr., Hockley, TX (US);
Assignee:
Robbins & Myers Energy Systems L.P., Willis, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drive assembly for powering a rotating rod string () passing through a surface wellhead () includes a torque conveying housing () containing a radially outer member supporting a plurality of outer member magnets and rotated by a motor. A radially inner member () supports a plurality of inner member magnets and is rotatable within the outer member, with magnetic forces between the plurality of outer member magnets and the plurality of inner member magnets rotating the inner member magnets and thus the radially inner member.