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:
Jul. 02, 2019
Filed:
Nov. 17, 2014
Applicant:
Coreteq Systems Ltd., Bagshot, GB;
Inventors:
Philip Head, Surry, GB;
Hassan Mansir, Maidenhead, GB;
Assignee:
Coreteq Systems Ltd., Surrey, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 21/46 (2006.01); H02K 21/14 (2006.01); H02K 5/132 (2006.01); H02K 7/00 (2006.01); H02K 7/20 (2006.01); H02K 16/00 (2006.01); H02K 17/16 (2006.01);
U.S. Cl.
CPC ...
H02K 21/46 (2013.01); H02K 5/132 (2013.01); H02K 7/003 (2013.01); H02K 7/20 (2013.01); H02K 16/00 (2013.01); H02K 17/16 (2013.01); H02K 21/14 (2013.01);
Abstract
A rotor system for a downhole motor includes at least one permanent magnet rotor section, and at least one squirrel cage rotor section. The permanent magnet rotor section and the squirrel cage rotor section are joined in series by a connection. In one example the connection includes a male self lock taper on one rotor, and a corresponding female self lock taper on the other rotor.