Negative Poisson`s Ratio Materials for Impact Protection Devices

    公开(公告)号:US20240253588A1

    公开(公告)日:2024-08-01

    申请号:US18633808

    申请日:2024-04-12

    Applicant: Joon Bu Park

    Inventor: Joon Bu Park

    Abstract: An impact protection device includes a cushion formed from a first material having a negative Poisson's ratio (NPR) and a second material having a positive Poisson's ratio (PPR). The first material and the second material can be layered or can be formed as a matrix of cells. The impact protection device can be an airbag with the cushion coupled to an inflation source or an expulsion source for deploying the airbag in response to an impact. The impact protection device can also be an impact vest with the cushions positioned on the vest body for absorbing impact forces to the vest body. The combination of the NPR and PPR materials improve the impact absorption of the impact protection devices compared to conventional materials.

    Negative Poisson's ratio materials for impact protection devices

    公开(公告)号:US11975669B1

    公开(公告)日:2024-05-07

    申请号:US18157473

    申请日:2023-01-20

    Applicant: Joon Bu Park

    Inventor: Joon Bu Park

    Abstract: An impact protection device includes a cushion formed from a first material having a negative Poisson's ratio (NPR) and a second material having a positive Poisson's ratio (PPR). The first material and the second material can be layered or can be formed as a matrix of cells. The impact protection device can be an airbag with the cushion coupled to an inflation source or an expulsion source for deploying the airbag in response to an impact. The impact protection device can also be an impact vest with the cushions positioned on the vest body for absorbing impact forces to the vest body. The combination of the NPR and PPR materials improve the impact absorption of the impact protection devices compared to conventional materials.

    CYCLING PAD, CYCLING PANTS, AND MANUFACTURING METHOD OF CYCLING PANTS

    公开(公告)号:US20240049809A1

    公开(公告)日:2024-02-15

    申请号:US17887496

    申请日:2022-08-14

    Inventor: LIN LI

    CPC classification number: A41D1/084 A41D13/015

    Abstract: A cycling pad includes a base, a first bulge, two second bulges, and two third bulges. The base includes a first end portion and a second end portion arranged opposite to the first end portion. A size of the first end portion is less than a size of the second end portion. The first bulge is arranged on the first end portion of the base. The second bulges are arranged on the base and are arranged side by side. The second bulges are arranged adjacent to one side, facing the second end portion of the base, of the first bulge. The third bulges are arranged side by side on the base. The third bulges are arranged adjacent to one side, facing the second end portion of the base, of the second bulges.

    PROTECTIVE HEADBAND
    8.
    发明公开
    PROTECTIVE HEADBAND 审中-公开

    公开(公告)号:US20230404191A1

    公开(公告)日:2023-12-21

    申请号:US18241979

    申请日:2023-09-04

    CPC classification number: A41D20/00 A41D13/015

    Abstract: A headband is provided which has a fabric layer defining pockets, padding layers positioned circumferentially around the headband in the pockets, and an impact panel. The impact panel is positioned to be proximate to the forehead of a wearer of the headband. One of the padding layers is positioned behind the impact panel, such that the padding layer is positioned between the impact panel and the forehead of a wearer.

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