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. 27, 1999
Filed:
Sep. 08, 1997
Applicant:
Inventors:
Joseph F Pinkerton, Austin, TX (US);
David B Clifton, Leander, TX (US);
Assignee:
Active Power, Inc., Austin, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310166 ; 310 74 ; 310178 ; 310179 ; 310181 ; 310203 ; 310214 ; 310216 ; 310261 ;
Abstract
A high inertia inductor-alternator energy storage device provides backup energy in a simple, compact device. The inductor-alternator stores an acceptable level of energy via an improved rotor that provides a high level of rotational inertia. The improved rotor can be manufactured at a reduced cost due to reduced milling requirements. Moreover, the inductor-alternators of the present invention have reduced complexity and increased reliability as a result of the geometry of the improved rotor.