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. 01, 2025
Filed:
Feb. 03, 2020
Board of Regents, the University of Texas System, Austin, TX (US);
Hetao Chu, Chengdu, CN;
Jinsong Leng, Harbin, CN;
Ray H. Baughman, Dallas, TX (US);
Xinghao Hu, Plano, TX (US);
Na Li, Milwaukee, WI (US);
Carter S. Haines, Murphy, TX (US);
Shaoli Fang, Richardson, TX (US);
Zhong Wang, Dallas, TX (US);
Jiuke Mu, Plano, TX (US);
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM, Austin, TX (US);
Abstract
Previous electrochemically-powered yarn muscles cannot be usefully operated between extreme negative and extreme positive potentials, since strokes during electron injection and during hole injection partially cancel because they are in the same direction. Unipolar-stroke carbon nanotube yarn muscles are described in which muscle strokes are additive between extreme negative and extreme positive potentials, and stroke increases with potential scan rate. These electrochemical artificial muscles include an electrically conducting twisted or coiled yarn and a material that dramatically shifts the potential of zero charge of the electrochemically actuated yarn.