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:
Nov. 01, 2011
Filed:
Oct. 28, 2008
Applicants:
Hao-li Liu, Tao-Yuan, TW;
Wen-shiang Chen, Taipei, TW;
Chen-kai Jan, Tao-Yuan, TW;
Inventors:
Assignee:
Chang Gung University, Tao-Yuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B 29/10 (2006.01); H02N 10/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention discloses a method and apparatus to control the shaping change of Shape-Memory-Alloy (SMA). The piece-wised current drain control device is designed to independently deliver current to stimulate sectional SMA but not the entire one. The invention is also successfully implemented on an automatic light sensitive aperture control device to simulate the light response of a pupil. The control technique can extend the application potential of SMA toward precise actuation, aeronautical applications, surgical tools, or biomedical applications such as artificial organ or muscles.