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.:

US 6868753 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 22, 2005

Filed:

Jun. 27, 2001
Applicant:

Stephen W. Tsai, Palo Alto, CA (US);

Inventor:

Stephen W. Tsai, Palo Alto, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F015/10 ;
U.S. Cl.
CPC ...
Abstract

A flywheel for use as an energy storage device is made of hoops of different fiber composite layers, the radial thickness of each hoop and the physical properties of the fiber composite in each loop being chosen by a computer modeling optimization procedure to maximize total energy of storage while minimizing radial stress.


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