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    Dielectric composite with reinforced elastomer and integrate electrode
    2.
    发明授权
    Dielectric composite with reinforced elastomer and integrate electrode 有权

    公开(公告)号：US11535017B2

    公开(公告)日：2022-12-27

    申请号：US16498177

    申请日：2018-04-04

    Applicant: W. L. Gore & Associates GmbH

    Inventor： Andrea Doernhoefer ,  Michael Rittmann ,  Klaus Seibert ,  Alexander Zaggi

    IPC: B32B27/32 ,  B32B5/16 ,  B32B15/06 ,  B32B15/20 ,  B32B25/08 ,  B32B25/12 ,  B32B25/18 ,  B32B25/20 ,  B32B27/40

    Abstract: The present disclosure is directed to dielectric elastomeric composites that include a retainable processing membrane, an elastomer material, and an electrically conductive material. The elastomer layer may be partially imbibed into the retainable processing membrane. The retainable processing membrane may be porous. The retainable processing membrane is compacted in the transverse in direction, machine direction, or in both directions prior to the application of an elastomer material and an electrically conductive material. The compaction of the retainable processing membrane may form structured folds or folded fibrils in the membrane, giving the retainable processing membrane a low modulus and flexibility. In some embodiments, the dielectric composites are positioned in a stacked configuration. Alternatively, the dielectric elastomeric composites may have a wound configuration. The dielectric composites have a total thickness less than about 170 μm. The dielectric elastomeric composites may be used, for example, in dielectric elastomer actuators, sensors, and in energy harvesting.

    Check valve
    3.
    发明授权
    Check valve 有权

    公开(公告)号：US11092253B2

    公开(公告)日：2021-08-17

    申请号：US16323166

    申请日：2017-08-09

    Applicant: W. L. Gore & Associates GmbH

    Inventor： Alexander Zaggl ,  Michael Rittmann

    IPC: F16K17/02 ,  F16K17/04

    Abstract: A check valve (1) for a through hole in a compartment wall (100) comprises an elastic membrane (20) covering an open end (16) of a flow passage (14), a base (11) to which the elastic membrane (20) is fixed, and a protector (30) covering at least a portion of the elastic membrane (20), wherein the elastic membrane is fixed to the base in a state where it is elastically stretched over and forced against a sealing surface (17) surrounding the open end (16) so as to seal the flow passage (14). The elastic membrane lifts from the sealing surface when the pressure in the flow passage is high. The elastic membrane may be air- or gas-permeable and, preferably, waterproof so as to impart a low pressure venting functionality to the check valve.

    DIELECTRIC COMPOSITE WITH REINFORCED ELASTOMER AND INTEGRATED ELECTRODE
    4.
    发明申请
    DIELECTRIC COMPOSITE WITH REINFORCED ELASTOMER AND INTEGRATED ELECTRODE 有权

    公开(公告)号：US20230084484A1

    公开(公告)日：2023-03-16

    申请号：US18058117

    申请日：2022-11-22

    Applicant: W. L. Gore & Associates GmbH

    Inventor： Andrea Doernhoefer ,  Michael Rittmann ,  Klaus Seibert ,  Alexander Zaggl

    IPC: B32B27/32 ,  B32B5/16 ,  B32B15/06 ,  B32B15/20 ,  B32B25/08 ,  B32B25/12 ,  B32B25/18 ,  B32B25/20 ,  B32B27/40

    Abstract: The present disclosure is directed to dielectric elastomeric composites that include a retainable processing membrane, an elastomer material, and an electrically conductive material. The elastomer layer may be partially imbibed into the retainable processing membrane. The retainable processing membrane may be porous. The retainable processing membrane is compacted in the transverse direction, machine direction, or in both directions prior to the application of an elastomer material and an electrically conductive material. The compaction of the retainable processing membrane may form structured folds or folded fibrils in the membrane, giving the retainable processing membrane a low modulus and flexibility. In some embodiments, the dielectric composites are positioned in a stacked configuration. Alternatively, the dielectric elastomeric composites may have a wound configuration. The dielectric composites have a total thickness less than about 170 µm. The dielectric elastomeric composites may be used, for example, in dielectric elastomer actuators, sensors, and in energy harvesting.

    Process for the formation of a porous film assembly
    5.
    发明授权
    Process for the formation of a porous film assembly 有权

    公开(公告)号：US11097527B2

    公开(公告)日：2021-08-24

    申请号：US15540274

    申请日：2016-02-24

    Applicant: W. L. Gore & Associates GmbH

    Inventor： Alexander Zaggl ,  Michael Rittmann

    IPC: B05C5/00 ,  B32B38/00 ,  B32B25/08 ,  B32B27/08 ,  B32B37/18 ,  G09G3/20 ,  G09G3/34

    Abstract: A process for the formation of an assembly comprising a structured or compacted porous film (c) comprising a) application of a porous film (d) onto an elastic substrate (a) in a stretched state such that a reversible adhesion of the film on the stretched substrate (a) occurs, and b) relaxing the substrate (a) with the applied film thereon to obtain a structured or compacted porous film (c), c) applying a support material (e) to a part of the structured or compacted film (c) so that the structured or compacted film to which no support material (e) is attached is releasable.

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