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. 24, 2023
Filed:
Mar. 04, 2021
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventors:
Anton Kolyshkin, Katy, TX (US);
Li Guo, Katy, TX (US);
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01C 1/10 (2006.01); F03C 2/00 (2006.01); F03C 4/00 (2006.01); F04C 18/00 (2006.01); F04C 2/107 (2006.01); E21B 4/02 (2006.01); F04C 2/08 (2006.01);
U.S. Cl.
CPC ...
F04C 2/1071 (2013.01); E21B 4/02 (2013.01); F04C 2/084 (2013.01); F04C 2/1076 (2013.01); F04C 2230/21 (2013.01); F04C 2230/91 (2013.01); F04C 2250/20 (2013.01); Y10T 29/49242 (2015.01);
Abstract
A rotor for a mud motor includes a core having a first outer shape, and a shell positioned around the core, the shell having a second outer shape that is different from the first outer shape, the second outer shape defining one or more lobes and one or more cavities that are configured to engage a bore of a stator during rotation of the rotor relative to the stator. A thickness of the shell varies as proceeding around the core, from a non-zero minimum thickness to a maximum thickness.