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:
Dec. 11, 2007
Filed:
Apr. 19, 2004
Kenneth Man Chee Cheung, Hong Kong, CN;
Kelvin Wai Kwok Yeung, Hong Kong, CN;
William Weijia LU, Hong Kong, CN;
Chl Yuen Chung, Hong Kong, CN;
Kenneth Man Chee Cheung, Hong Kong, CN;
Kelvin Wai Kwok Yeung, Hong Kong, CN;
William Weijia Lu, Hong Kong, CN;
Chl Yuen Chung, Hong Kong, CN;
Versitech Limited, Hong Kong, CN;
The City University of Hong Kong, Hong Kong, CN;
Abstract
The present invention relates generally to a shape memory and/or super-elastic material, such as a nickel titanium alloy. Additionally or alternatively, the present invention relates to a super-elastic or pseudo-elastic material that has an initial transition temperature Aabove a body temperature. The shape memory material can have a super-elasticity or pseudo-elasticity property at a temperature below the initial transition temperature Aof the material. For example, the shape memory material can have its workable temperature for producing super-elasticity or pseudo-elasticity of about 0° C. to 15° C. below the initial transition temperature A. The shape memory material can be malleable at a room temperature, and become super-elastic or pseudo-elastic at a body temperature. In addition, the present invention relates to a method of making a shape memory or a super-elastic material. The treatment protocols can include but not limited to thermo-mechanical, thermo-mechanical, radiation, and ternary alloying treatments.