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    Tunable nanofiber filter media and filter devices
    14.
    发明授权
    Tunable nanofiber filter media and filter devices 有权

    公开(公告)号：US10159926B2

    公开(公告)日：2018-12-25

    申请号：US15260677

    申请日：2016-09-09

    申请人： Ultra Small Fibers, LLC

    发明人： William Hudson Hofmeister ,  Robert A. Van Wyk ,  Keith Allen Holloway

    IPC分类号： B01D63/00 ,  B01D63/08 ,  B01D46/52 ,  B01D67/00

    摘要： A tunable nanofiber filter device can include a filter housing defining an interior space, the housing having defined therein and inlet and an outlet, each in fluid communication with the interior space, and a plurality of filter laminas disposed within the interior space, each filter lamina including an upper surface, a lower surface, and an aperture defined therethrough. The plurality of filter laminas can be arranged in a stack wherein the opposing surfaces of adjacent filter laminas define a portion of an interlaminar flow space extending between the opposing surfaces. The flow space can be in fluid communication with the apertures of corresponding adjacent filter laminas to form a continuous flow passage extending through the lamina stack from the inlet to the outlet. An array nanofibers can extend into the flow passage from a portion of each filter lamina such that a fluid flowed through the flow passage flows across a portion of said array.

    Filter media ribbons with nanofibers formed thereon
    16.
    发明授权
    Filter media ribbons with nanofibers formed thereon 有权

    公开(公告)号：US11944926B2

    公开(公告)日：2024-04-02

    申请号：US17688616

    申请日：2022-03-07

    申请人： ULTRA SMALL FIBERS, LLC

    发明人： William H. Hofmeister ,  Robert A. Van Wyk ,  Collin Anderson

    IPC分类号： B01D39/16 ,  D04H3/016

    CPC分类号： B01D39/1623 ,  D04H3/016 ,  B01D2239/0618 ,  B01D2239/1208 ,  B01D2239/1233

    摘要： Nanofiber filter media ribbons are flexible elongate strips of polymeric material having a surface on which is formed an array of nanofibers. Ribbons are formable into woven or non-woven mats. The array of nanofibers can be configured to filter a predetermined contaminant from a fluid stream passing through the mats. Filter ribbons are formable by applying a moldable polymer to a first angular location of a rotating cylindrical roll having an array of nanoholes formed in a circumferential surface thereof so that the polymer covers the surface of the roll and infiltrates the nanoholes; cooling the polymer while rotating the polymer-covered roll to a second angular position; and removing the cooled polymer from the roll as an elongate film having an array of nanofibers formed on a surface thereof by the polymer that infiltrated the nanoholes.

    FILTER MEDIA RIBBONS WITH NANOFIBERS FORMED THEREON
    19.
    发明申请
    FILTER MEDIA RIBBONS WITH NANOFIBERS FORMED THEREON 有权

    公开(公告)号：US20220258084A1

    公开(公告)日：2022-08-18

    申请号：US17688616

    申请日：2022-03-07

    申请人： ULTRA SMALL FIBERS, LLC

    发明人： William H. Hofmeister ,  Robert A. Van Wyk ,  Collin Anderson

    IPC分类号： B01D39/16 ,  D04H3/016

    摘要： Nanofiber filter media ribbons are flexible elongate strips of polymeric material having a surface on which is formed an array of nanofibers. Ribbons are formable into woven or non-woven mats. The array of nanofibers can be configured to filter a predetermined contaminant from a fluid stream passing through the mats. Filter ribbons are formable by applying a moldable polymer to a first angular location of a rotating cylindrical roll having an array of nanoholes formed in a circumferential surface thereof so that the polymer covers the surface of the roll and infiltrates the nanoholes; cooling the polymer while rotating the polymer-covered roll to a second angular position; and removing the cooled polymer from the roll as an elongate film having an array of nanofibers formed on a surface thereof by the polymer that infiltrated the nanoholes.

    TUNABLE NANOFIBER FILTER MEDIA AND FILTER DEVICES
    20.
    发明申请
    TUNABLE NANOFIBER FILTER MEDIA AND FILTER DEVICES 有权

    公开(公告)号：US20210346835A1

    公开(公告)日：2021-11-11

    申请号：US17246985

    申请日：2021-05-03

    申请人： ULTRA SMALL FIBERS, LLC

    发明人： William Hudson Hofmeister ,  Robert A. Van Wyk ,  Keith Allen Holloway

    IPC分类号： B01D46/52 ,  B01D63/08 ,  B01D67/00

    摘要： A tunable nanofiber filter device can include a filter housing defining an interior space, the housing having defined therein and inlet and an outlet, each in fluid communication with the interior space, and a plurality of filter laminas disposed within the interior space, each filter lamina including an upper surface, a lower surface, and an aperture defined therethrough. The plurality of filter laminas can be arranged in a stack wherein the opposing surfaces of adjacent filter laminas define a portion of an interlaminar flow space extending between the opposing surfaces. The flow space can be in fluid communication with the apertures of corresponding adjacent filter laminas to form a continuous flow passage extending through the lamina stack from the inlet to the outlet. An array nanofibers can extend into the flow passage from a portion of each filter lamina such that a fluid flowed through the flow passage flows across a portion of said array.