Wipe sampling assembly
    1.
    发明授权
    Wipe sampling assembly 有权
    擦拭取样组件

    公开(公告)号:US08042414B2

    公开(公告)日:2011-10-25

    申请号:US12341275

    申请日:2008-12-22

    IPC分类号: G01N1/04

    摘要: A wipe sampling assembly used for an ion mobility spectrometer is disclosed. The wipe sampling assembly comprises three layers in which the upper layer and the lower layer are protective paper sheets, while the middle layer is a sampling swab. The swab will not be contaminated when not in use as it is covered by the two protective paper sheets. The hand can only contact the protective paper and will not contact the swab while sampling to prevent the swab from being contaminated. The above wipe sampling assembly is used with no need for any additional device, thus making it easy to operate and carry.

    摘要翻译: 公开了一种用于离子迁移谱仪的擦拭取样组件。 擦拭取样组件包括三层,其中上层和下层是保护纸,而中间层是取样拭子。 不使用时,棉签不会被两张保护纸所覆盖。 手只能接触保护纸,并在取样时不要接触棉签,以防止棉签受到污染。 使用上述擦拭取样组件,不需要任何附加装置,因此使其易于操作和携带。

    Mug
    4.
    外观设计
    Mug 有权

    公开(公告)号:USD962002S1

    公开(公告)日:2022-08-30

    申请号:US29808797

    申请日:2021-09-23

    申请人: Wei Chen

    设计人: Wei Chen

    Floor drain
    5.
    发明授权

    公开(公告)号:US11408163B2

    公开(公告)日:2022-08-09

    申请号:US16899621

    申请日:2020-06-12

    申请人: Wei Chen Hao Chen

    发明人: Wei Chen Hao Chen

    IPC分类号: E03F5/04

    摘要: A drain floor, including a drain base, a drain body including a cavity, a drain cup, a supporting frame; and a reset member. The drain cup includes a cup body, a stem, and a base. The cup body includes a through hole, and two ends of the stem are connected to the cup body and the base, respectively. The cup body is disposed in the cavity and the base is disposed out of the cavity. The space between the drain body and the drain cup forms an annular channel, and the annular channel communicates with the through hole. The annular channel includes a water inlet and a water outlet. The reset member is connected to the drain cup and is movable with respect to the drain cup to open and close the water outlet. The supporting frame connects the drain body and the reset member.

    Speaker Box
    10.
    发明申请
    Speaker Box 审中-公开

    公开(公告)号:US20180115821A1

    公开(公告)日:2018-04-26

    申请号:US15417194

    申请日:2017-01-26

    申请人: Wei Chen

    发明人: Wei Chen

    IPC分类号: H04R1/28 H04R1/02

    摘要: A speaker box is disclosed. The speaker box includes a housing having an accommodation space, a speaker unit accommodated in the accommodation space, a steel sheet injected in the housing and covering the opening; and a front cavity formed by the steel sheet, the diaphragm and the housing. The housing has an opening located above the diaphragm and an opening wall encircling the opening. The speaker unit includes a diaphragm having a moving element accommodated in the opening and a fixed part. The housing further includes an extension part formed and extending from the opening wall to the front cavity. The extension part combines with the injection of steel sheet, at least part of the extension is located on an upper side of the moving element and does not influence the normal vibration of the moving element.