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:
Mar. 01, 2011
Filed:
Mar. 21, 2006
Applicants:
Olivier Sindt, Cheltenham, GB;
Geoff Downton, Minchinhampton, GB;
Laurent Carteron, Cheltenham, GB;
Francois Clouzeau, Battlesdown, GB;
Inventors:
Olivier Sindt, Cheltenham, GB;
Geoff Downton, Minchinhampton, GB;
Laurent Carteron, Cheltenham, GB;
Francois Clouzeau, Battlesdown, GB;
Assignee:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03C 2/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The rotor of a downhole motor includes a mandrel having at least one radial lobe, and an elastomeric tubular sleeve compressed about the mandrel so as to establish frictional engagement therebetween. The sleeve is compressed about the mandrel through one of various processes, including heat shrinking, vacuum shrinking, and stretching.