Coiled and twisted nanofiber yarn and polymer fiber actuators
US-11143169-B2 · Oct 12, 2021 · US
Polymer fiber actuators
US11629705B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11629705-B2 |
| Application number | US-202117480635-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 21, 2021 |
| Priority date | Aug 1, 2012 |
| Publication date | Apr 18, 2023 |
| Grant date | Apr 18, 2023 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
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.
First claim
Opening claim text (preview).
What is claimed is: 1. A rotational device comprising: (a) a twisted and non-coiled polymer fiber having an internal electrical connecting position dividing the twisted and non-coiled polymer fiber into a first region and a second region; (b) a first electrical connecting position on the first region; and (c) a second electrical connecting position on the second region, wherein (i) the first region and the second region are capable of being maintained at different temperatures selected from electrical heating and passive cooling. 2. The rotational device of claim 1 , wherein the twisted and non-coiled polymer fiber comprises a polymer fiber selected from a group consisting of nylon 6, nylon 6,6, polyethylene, and combinations thereof.
Assignees
Inventors
Classifications
Medical; Hygiene · CPC title
made from particular materials · CPC title
Electro-spinning (non-woven fabrics produced by electro-spinning D04H1/728) · CPC title
Helical or coiled · CPC title
elastic · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11629705B2 cover?
- 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 descr…
- Who is the assignee on this patent?
- Univ Texas, Univ Texas
- What technology area does this patent fall under?
- Primary CPC classification H02N11/006. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 18 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).