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公开(公告)号:US12006598B2
公开(公告)日:2024-06-11
申请号:US17610045
申请日:2020-05-07
Inventor: Ray H. Baughman , Jiuke Mu , Monica Jung De Andrade , Shaoli Fang , Na Li , Carter S. Haines
Abstract: Sheath-run artificial muscles (or SRAMs) are described in which the dimensional changes and/or modulus changes of a sheath on the surface of a twisted or coiled host yarn or fiber drives torsional and tensile actuation. The sheath-core artificial muscle includes a sheath on a coiled core yarn or fiber that has inserted twist, in which the sheath does not include a yarn, the coiled core yarn or fiber includes a core yarn or fiber, the sheath can change volume, modulus, or a combination thereof when actuated by an influence source to drive actuation, and the influence source is selected from a group consisting of absorption processes, desorption processes, changes in temperature, changes in external pressure, changes in a magnetic field, changes in an electric field, exposures to actinic radiation, electrochemical charge and discharge, chemical reactions, and combinations thereof. These sheath-run muscles can be used for diverse applications, such as robots, robotic devices, energy harvesters, muscles that enable electrical energy harvesting, comfort-adjusting textiles, comfort-adjusting clothing, bio-powered intelligent muscles that control the release of drugs, muscles for appropriate drug delivery, intelligent muscles that sense their environment and actuate in response, muscles for artificial limbs and orthotic gloves, muscles for haptic applications, muscles that can perform in extreme environments, and muscles for intelligent solar panel positioning.
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公开(公告)号:US20240328040A1
公开(公告)日:2024-10-03
申请号:US18736159
申请日:2024-06-06
Inventor: Ray H. Baughman , Jiuke Mu , Monica Jung De Andrade , Shaoli Fang , Na Li , Carter S. Haines
Abstract: Sheath-run artificial muscles (or SRAMs) are described in which the dimensional changes and/or modulus changes of a sheath on the surface of a twisted or coiled host yarn or fiber drives torsional and tensile actuation. The sheath-core artificial muscle includes a sheath on a coiled core yarn or fiber that has inserted twist, in which the sheath does not include a yam, the coiled core yarn or fiber includes a core yarn or fiber, the sheath can change volume, modulus, or a combination thereof when actuated by an influence source to drive actuation, and the influence source is selected from a group consisting of absorption processes, desorption processes, changes in temperature, changes in external pressure, changes in a magnetic field, changes in an electric field, exposures to actinic radiation, electrochemical charge and discharge, chemical reactions, and combinations thereof. These sheath-run muscles can be used for diverse applications, such as robots, robotic devices, energy harvesters, muscles that enable electrical energy harvesting, comfort-adjusting textiles, comfort-adjusting clothing, bio-powered intelligent muscles that control the release of drugs, muscles for appropriate drug delivery, intelligent muscles that sense their environment and actuate in response, muscles for artificial limbs and orthotic gloves, muscles for haptic applications, muscles that can perform in extreme environments, and muscles for intelligent solar panel positioning.
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公开(公告)号:US20220259774A1
公开(公告)日:2022-08-18
申请号:US17610045
申请日:2020-05-07
Inventor: Ray H. Baughman , Jiuke Mu , Monica Jung De Andrade , Shaoli Fang , Na Li , Carter S. Haines
Abstract: Sheath-run artificial muscles (or SRAMs) are described in which the dimensional changes and/or modulus changes of a sheath on the surface of a twisted or coiled host yarn or fiber drives torsional and tensile actuation. The sheath-core artificial muscle includes a sheath on a coiled core yarn or fiber that has inserted twist, in which the sheath does not include a yarn, the coiled core yarn or fiber includes a core yarn or fiber, the sheath can change volume, modulus, or a combination thereof when actuated by an influence source to drive actuation, and the influence source is selected from a group consisting of absorption processes, desorption processes, changes in temperature, changes in external pressure, changes in a magnetic field, changes in an electric field, exposures to actinic radiation, electrochemical charge and discharge, chemical reactions, and combinations thereof. These sheath-run muscles can be used for diverse applications, such as robots, robotic devices, energy harvesters, muscles that enable electrical energy harvesting, comfort-adjusting textiles, comfort-adjusting clothing, bio-powered intelligent muscles that control the release of drugs, muscles for appropriate drug delivery, intelligent muscles that sense their environment and actuate in response, muscles for artificial limbs and orthotic gloves, muscles for haptic applications, muscles that can perform in extreme environments, and muscles for intelligent solar panel positioning.
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4.
公开(公告)号:US11703257B2
公开(公告)日:2023-07-18
申请号:US17036018
申请日:2020-09-29
Inventor: Zunfeng Liu , Run Wang , Jiuke Mu , Zhong Wang , Shaoli Fang , Marcio Dias Lima , Ali E. Aliev , Na Li , Carter S. Haines , Ray H. Baughman
CPC classification number: F25B23/00 , D02G3/44 , D10B2401/06 , F03G7/0612 , F03G7/0615 , F03G7/06113 , H02N10/00 , Y10T428/2925
Abstract: Cooling by a twist-untwist process, by a stretch-release process for twisted, coiled, or supercoiled yarns or fibers, and methods and systems thereof. High mechanocaloric cooling results from release of inserted twist or from stretch release for twisted, coiled, or supercoiled fibers, including natural rubber fibers, NiTi wires, and polyethylene fishing line. Twist utilization can increase cooling and cooling efficiencies. A cooler using twist insertion and release can be shorter and smaller in volume than a cooler that requires a large elastomeric elongation. The cooler system can be utilized in mechanochromic textiles and remotely readable tensile and torsional sensors.
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5.
公开(公告)号:US20210116152A1
公开(公告)日:2021-04-22
申请号:US17036018
申请日:2020-09-29
Inventor: Zunfeng Liu , Run Wang , Jiuke Mu , Zhong Wang , Shaoli Fang , Marcio Dias Lima , Ali E. Aliev , Na Li , Carter S. Haines , Ray H. Baughman
IPC: F25B23/00
Abstract: Cooling by a twist-untwist process, by a stretch-release process for twisted, coiled, or supercoiled yarns or fibers, and methods and systems thereof. High mechanocaloric cooling results from release of inserted twist or from stretch release for twisted, coiled, or supercoiled fibers, including natural rubber fibers, NiTi wires, and polyethylene fishing line. Twist utilization can increase cooling and cooling efficiencies. A cooler using twist insertion and release can be shorter and smaller in volume than a cooler that requires a large elastomeric elongation. The cooler system can be utilized in mechanochromic textiles and remotely readable tensile and torsional sensors.
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