Nanofiber yarn dispenser
    62.
    发明授权

    公开(公告)号:US11524862B2

    公开(公告)日:2022-12-13

    申请号:US17085397

    申请日:2020-10-30

    Abstract: A dispenser is described for dispensing nanofiber yarns that includes a housing that defines an inlet, an outlet, and a chamber. A spool, around which is wound a length of nanofiber yarn, is disposed within the chamber defined by the housing. The nanofiber yarn is threaded from the chamber through the outlet and can be dispensed in a controlled way that reduces the likelihood of developing knots within the nanofiber yarn, and which facilitates convenient application of the yarn onto an underlying surface. In some cases, the dispenser can be used to concurrently dispense an adhesive or other polymer along with the nanofiber yarn.

    NANOFIBER ASSEMBLIES WITH MULTIPLE ELECTROCHROMIC STATES

    公开(公告)号:US20220342267A1

    公开(公告)日:2022-10-27

    申请号:US17760900

    申请日:2020-09-11

    Inventor: Jaeah LEE

    Abstract: Composite assemblies are described that can be switched from a transparent state to a non transparent state, and in some examples even switched between different colors/reflectivities in the non transparent state. Switching between these states can be initiated by application of an electrical current to Ag carbon nanotube yarns in contact with an electrochromic electrolyte. The carbon nanotube yarns increase the efficiency with which electrons are provided to an electrolyte.

    Bending muscle sleeve
    64.
    发明授权

    公开(公告)号:US11338432B2

    公开(公告)日:2022-05-24

    申请号:US16810132

    申请日:2020-03-05

    Abstract: A muscle sleeve includes: a sleeve-formed fabric; a plurality of first actuating muscles disposed next to each other and in parallel with each other on a first side of the sleeve-formed fabric; a plurality of second actuating muscles disposed next to each other and in parallel with each other on a second side of the sleeve-formed fabric; a plurality of fasteners that secure ends of the first and second actuating muscles to the fabric; and a crimp secured to the fabric.

    Applying micron diameter yarns
    65.
    发明授权

    公开(公告)号:US11161743B2

    公开(公告)日:2021-11-02

    申请号:US16390130

    申请日:2019-04-22

    Abstract: Placement of nanofibers and yarns comprised of nanofibers onto a substrate are described. The nanofiber yarns are difficult to manipulate with precision given that the diameters can be as little as 5 microns or even less than one micron. As described herein, a placement system is described that can place nanofiber yarns on a substrate at pitches less than 100 μm, less than 50 μm, less than 10 μm, and in some embodiments as low as 2 μm. In part, this precise placement at small pitches is facilitated by the use of coarse and fine adjustment translators, and a guide connected to a compliant flange. The compliant flange and the guide facilitate consistency of location of a nanofiber yarn.

    NANOFIBER YARN SPINNING SYSTEM
    66.
    发明申请

    公开(公告)号:US20210189606A1

    公开(公告)日:2021-06-24

    申请号:US17126510

    申请日:2020-12-18

    Abstract: Systems for fabricating nanofiber yarn at rates of at least 30 m/min (1.8 kilometers (km)/hour (hr)) using a “false twist” nanofiber yarn spinner and a false twist spinning technique are disclosed. In a false twist spinning technique, a twist is introduced to nanofibers in a strand by twisting the nanofibers at points between ends of the strand. This is in contrast to the “true twist” technique where one end of a strand is fixed and the opposing end of the strand is rotated to introduce the twist to intervening portions of yarn.

    CONTROLLING NANOFIBER SHEET WIDTH
    67.
    发明申请

    公开(公告)号:US20210163295A1

    公开(公告)日:2021-06-03

    申请号:US17162355

    申请日:2021-01-29

    Abstract: Techniques are described for controlling widths of nanofiber sheets drawn from a nanofiber forest. Nanofiber sheet width can be controlled by dividing or sectioning the nanofiber sheet in its as-drawn state into sub-sheets as the sheet is being drawn. A width of a sub-sheet can be controlled or selected so as to contain regions of uniform nanofiber density within a sub-sheet (thereby improving nanofiber yarn consistency) or to isolate an inhomogeneity (whether a discontinuity is the sheet (e.g., a tear) or a variation in density) within a sub-sheet. Techniques for dividing a nanofiber sheet into sub-sheets includes mechanical, corona, and electrical arc techniques.

    Triboelectric generator
    69.
    发明授权

    公开(公告)号:US10978965B2

    公开(公告)日:2021-04-13

    申请号:US15957087

    申请日:2018-04-19

    Inventor: Jaeah Lee

    Abstract: A triboelectric generator include at least two yarns, one of which has been infiltrated with a material having a positive triboelectric affinity and one of which has been infiltrated with a material having a negative triboelectric affinity. The at least two yarns are threaded through holes within a disk so that both of the yarns are disposed on both sides of the disk and pass through the holes within the disk. The at least two yarns are helically wrapped (or “coiled”) together on both sides of the disk. During uncoiling, the moving contact between the two yarns, infiltrated with materials having opposite triboelectric affinities, causes an electrical charge to develop. The generated electrical charge can be conducted away for use as electricity.

    NANOFIBER YARN DISPENSER
    70.
    发明申请

    公开(公告)号:US20210070581A1

    公开(公告)日:2021-03-11

    申请号:US17085397

    申请日:2020-10-30

    Abstract: A dispenser is described for dispensing nanofiber yarns that includes a housing that defines an inlet, an outlet, and a chamber. A spool, around which is wound a length of nanofiber yarn, is disposed within the chamber defined by the housing. The nanofiber yarn is threaded from the chamber through the outlet and can be dispensed in a controlled way that reduces the likelihood of developing knots within the nanofiber yarn, and which facilitates convenient application of the yarn onto an underlying surface. In some cases, the dispenser can be used to concurrently dispense an adhesive or other polymer along with the nanofiber yarn.

Patent Agency Ranking