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. 18, 2023
Filed:
Sep. 21, 2021
Board of Regents, the University of Texas System, Austin, TX (US);
Na Li, Richardson, TX (US);
Carter S. Haines, Murphy, TX (US);
Marco D. Lima, Richardson, TX (US);
Monica Jung DeAndrade, Richardson, TX (US);
Shaoli Fang, Richardson, TX (US);
Jiyoung Oh, Richardson, TX (US);
Mikhail E. Kozlov, Dallas, TX (US);
Dongseok Suh, Plano, TX (US);
Ray H. Baughman, Dallas, TX (US);
THE BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM, Austin, TX (US);
Abstract
Actuators (artificial muscles) comprising twist-spun nanofiber yarn or twist-inserted polymer fibers generate actuation when powered electrically, photonically, chemically, thermally, by absorption, or by other means. These artificial muscles utilize polymer fibers non-coiled or coiled yarns and can be either neat or comprising a guest. Devices comprising these artificial muscles are also described. In some embodiments, thermally-powered polymer fiber torsional actuator has a twisted, chain-oriented polymer fiber that has a first degree of twist at a first temperature and a second degree of twist at a second temperature in which the bias angles of the first degree and second degree of twist are substantially different.