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:
Apr. 05, 2011
Filed:
May. 01, 2009
Applicant:
Yu-chih Cheng, Taipei, TW;
Inventor:
Yu-Chih Cheng, Taipei, TW;
Assignee:
Primax Electronics Ltd., Taipei, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F03B 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A small-sized power package includes a tubular case, a magnet tube, a coil, a power-generating magnet, a shaft, a movable box, and a positioning magnet. The power-generating magnet is attracted by the positioning magnet and thus suspended within the magnet tube. The small-sized power package has enhanced power generating efficiency by utilizing the benefit of magnetic levitation. An electronic device including such a small-sized power package is also provided.