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:
Feb. 05, 2013
Filed:
Nov. 17, 2010
David Lyons, Palo Alto, CA (US);
Jeffrey B. Straubel, Menlo Park, CA (US);
Erik Shahoian, Orinda, CA (US);
Rudy Garriga, Los Altos, CA (US);
David Lyons, Palo Alto, CA (US);
Jeffrey B. Straubel, Menlo Park, CA (US);
Erik Shahoian, Orinda, CA (US);
Rudy Garriga, Los Altos, CA (US);
Tesla Motors, Inc., Palo Alto, CA (US);
Abstract
A rotor assembly and a method for fabricating the same are provided in which a solid rotor ring is formed at either end of a stack of laminated discs, the solid rotor rings yielding improved electrical and mechanical characteristics in a low weight assembly. The solid rotor rings are fabricated by brazing slugs between the end portions of the rotor bars, the braze joints contacting a large percentage (at least 90 %) of the rotor bar end portions.