Title: Coiled actuator system and method

Abstract

A system and method of generating a coiled actuator fiber. The method includes twisting a fiber to generate a twisted fiber, wrapping the twisted fiber around a core to generate a coil in the twisted fiber; and removing at least a portion of the core to generate a coiled actuator fiber. In some aspects that fiber can be a yarn with one or more fibers or a fiber comprising a single elongated element. In some aspects, a portion of the core includes a removable sacrificial portion. The removable sacrificial portion can be dissolvable in a solvent or physically removable. In some aspects, the core further includes a non-dissolvable portion that is not dissolvable and generating a coiled actuator can include removing the sacrificial portion by treating a twisted fiber on the core to remove the sacrificial portion and leaving the non-dissolvable portion.

Inventors:

Ridley, Brent; Chang, Jean; Maikranz, Shara

Issue Date:

Tue Oct 06 00:00:00 EDT 2020

Research Org.:

Other Lab, LLC, San Francisco, CA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1771470

Patent Number(s):

10793979

Application Number:

15/949,881

Assignee:

Other Lab, LLC (San Francisco, CA)

Patent Classifications (CPCs):

D - TEXTILES D02 - YARNS D02G - CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS

D - TEXTILES D06 - TREATMENT OF TEXTILES OR THE LIKE D06M - TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS

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D - TEXTILES D02 - YARNS D02G - CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS

D02G1/0286 - {characterised by the use of certain filaments, fibres or yarns}
D02G1/205 - {After-treatments for fixing crimp or curl}
D02G3/02 - Yarns or threads characterised by the material or by the materials from which they are made
D02G3/326 - {the elastic properties due to the construction rather than to the use of elastic material}
D02G3/36 - Cored or coated yarns or threads
D02G3/38 - Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, {e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
D02G3/406 - {where the polymeric solution is removable at a later stage, e.g. by washing}

D - TEXTILES D06 - TREATMENT OF TEXTILES OR THE LIKE D06M - TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS

D06M11/05 - with water, e.g. steam
D06M11/84 - combined with mechanical treatment
D06M2101/20 - Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
D06M2101/32 - Polyesters
D06M2101/34 - Polyamides

D - TEXTILES D10 - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES D10B - INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES

D10B2321/06 - polymers of unsaturated alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals
D10B2331/02 - polyamides
D10B2401/024 - soluble
D10B2401/04 - Heat-responsive characteristics
D10B2501/00 - Wearing apparel

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DOE Contract Number:  

AR0000536

Resource Type:

Patent

Resource Relation:

Patent File Date: 04/10/2018

Country of Publication:

United States

Language:

English

Subject:

42 ENGINEERING