Dongseok Suh

US Patent:

20200191127, Jun 18, 2020

Filed:

Oct 9, 2019

Appl. No.:

16/596921

Inventors:

- Austin TX, US
Carter S. Haines - Murphy TX, US
Marcio 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

Assignee:

Board of Regents, The University of Texas System - Austin TX

International Classification:

F03G 7/06
H02N 10/00
D04C 1/02
D01H 1/10
D01F 6/00
D02G 3/44
D02G 3/26
D02G 3/02
D01D 5/00
H02N 11/00

Abstract:

Actuators (artificial muscles) comprising twist-spun nanofiber yarn or twist-inserted polymer fibers generate torsional actuation when powered electrically, photonically, chemically, thermally, by absorption, or by other means. These artificial muscles utilize coiled yarns/polymer fibers and can be either neat or comprising a guest. In some embodiments, the actuator system includes a twisted and coiled polymer fiber actuator, and at least one of (i) wire connections that enable electrical heating of the twisted and coiled polymer fiber actuator, (ii) a radiation source and radiation pathway that enables photothermal heating of the twisted and coiled polymer fiber actuator, and (iii) a delivery system for delivering chemicals whose reaction produces heating of the twisted and coiled polymer fiber actuator.

US Patent:

20200088175, Mar 19, 2020

Filed:

Nov 15, 2019

Appl. No.:

16/685904

Inventors:

- Austin TX, US
Carter S. Haines - Murphy TX, US
Marcio 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

Assignee:

Board of Regents, The University of Texas System - Austin TX

International Classification:

F03G 7/06
H02N 11/00
D01D 5/00
D02G 3/02
D02G 3/26
D02G 3/44
D01F 6/00
D01H 1/10
D04C 1/02
H02N 10/00

Abstract:

Actuators (artificial muscles) comprising twist-spun nanofiber twist-inserted polymer fibers generate tensile actuation when powered electrically, photonically, chemically, thermally, by absorption, or by other means. These artificial muscles utilize coiled polymer fibers and can be either neat or comprising a guest. In some embodiments, the coiled polymer fibers actuator can be incorporated into an article, such as a textile, braid, clothing, smart packaging, or a mechanical system, and the coiled polymer fiber in the coiled polymer fiber actuator can have a stroke amplification factor of 5 or greater.

US Patent:

20180073490, Mar 15, 2018

Filed:

Nov 16, 2017

Appl. No.:

15/814941

Inventors:

- Austin TX, US
Carter S. Haines - Murphy TX, US
Marcio 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

Assignee:

Board of Regents, The University of Texas System - Austin TX

International Classification:

F03G 7/06
H02N 10/00
D04C 1/02
D01H 1/10
D01F 6/00
D02G 3/02
D02G 3/26
D02G 3/44
D01D 5/00
H02N 11/00

Abstract:

Actuators (artificial muscles) comprising twist-spun nanofiber yarn or twist-inserted polymer fibers generate torsional actuation when powered electrically, photonically, chemically, thermally, by absorption, or by other means. These artificial muscles utilize coiled yarns/polymer fibers and can be either neat or comprising a guest. In some embodiments, the torsional fiber actuator includes a first polymer fiber (exhibiting a first polymer fiber diameter) and a torsional return spring in communication with the first polymer fiber. The first polymer fiber is configured to include a first plurality of twists in a first direction to produce a twisted polymer fiber. The first polymer fiber is further configured to include a plurality of coils in the twisted polymer fiber in a second direction each coil having a mean coil diameter. In some embodiments, the torsional nanofiber actuator includes a first carbon nanofiber yarn (having a yarn diameter) and a torsional return spring in communication with the first carbon nanofiber yarn. The first carbon nanofiber yarn includes a plurality of twists in a first direction to produce a twisted carbon nanofiber yarn. The first carbon nanofiber yarn further includes a plurality of coils in the twisted carbon nanofiber yarn, with each coil having a mean coil diameter greater than the yarn diameter.

US Patent:

20150219078, Aug 6, 2015

Filed:

Aug 1, 2013

Appl. No.:

14/418811

Inventors:

- Austin TX, US
Carter S. Haines - Murphy TX, US
Marcio D. Lima - Richardson TX, US
Monica Jung DeAndrade - Richardson TX, US
Shaoli Fang - Richardson TX, US
Jiyoung Oh - Richardson TX, US
Mikhail Kozlov - Dallas TX, US
Fatma Goktepe - Merkez, TR
Ozer Goktepe - Merkez, TR
Dongseok Suh - Plano TX, US
Ray H. Baughman - Dallas TX, US

Assignee:

The Board of Regents, The University of Texas System - Austin TX

International Classification:

F03G 7/06
H02N 10/00
D01H 1/10
D01F 6/00
D04C 1/02

Abstract:

Actuators (artificial muscles) comprising twist-spun nanofiber yarn or twist-inserted polymer fibers generate torsional and/or tensile actuation when powered electrically, photonically, chemically, thermally, by absorption, or by other means. These artificial muscles utilize non-coiled or coiled yarns and can be either neat or comprising a guest. Devices comprising these artificial muscles are also described.

US Patent:

20150152852, Jun 4, 2015

Filed:

Jan 30, 2015

Appl. No.:

14/610905

Inventors:

- Austin TX, US
Carter S. Haines - Murphy TX, US
Marcio D. Lima - Richardson TX, US
Monica Jung De Andrade - 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

Assignee:

The Board of Regents, The University of Texas System - Austin TX

International Classification:

F03G 7/06
D01D 5/00
D02G 3/44
D02G 3/02
D02G 3/26

Abstract:

Actuators (artificial muscles) comprising twist-spun nanofiber yarn or twist-inserted polymer fibers generate torsional and/or tensile actuation when powered electrically, photonically, chemically, thermally, by absorption, or by other means. These artificial muscles utilize non-coiled or coiled yarns and can be either neat or comprising a guest. Devices comprising these artificial muscles are also described.