Corrosion resistant PEM fuel cell
    53.
    再颁专利
    Corrosion resistant PEM fuel cell 有权
    耐腐蚀PEM燃料电池

    公开(公告)号:USRE37284E1

    公开(公告)日:2001-07-17

    申请号:US09504349

    申请日:2000-02-14

    Abstract: The present invention contemplates a PEM fuel cell having electrical contact elements (including bipolar plates/septums) comprising a titanium nitride coated light weight metal (e.g., Al or Ti) core, having a passivating, protective metal layer intermediate the core and the titanium nitride. The protective layer forms a barrier to further oxidation/corrosion when exposed to the fuel cell's operating environment. Stainless steels rich in CR, Ni, and Mo are particularly effective protective interlayers.

    Abstract translation: 本发明设想一种具有电接触元件(包括双极板/隔膜)的PEM燃料电池,其包括氮化钛涂覆的轻质金属(例如,Al或Ti)芯,其具有在芯和氮化钛之间的钝化保护金属层 。 当暴露于燃料电池的操作环境时,保护层形成进一步氧化/腐蚀的障碍。 富含CR,Ni和Mo的不锈钢是特别有效的保护性中间层。

    Wall mount
    54.
    外观设计

    公开(公告)号:USD1054280S1

    公开(公告)日:2024-12-17

    申请号:US29962430

    申请日:2024-09-11

    Applicant: Yang Li

    Designer: Yang Li

    Stirling engine
    55.
    外观设计

    公开(公告)号:USD1000546S1

    公开(公告)日:2023-10-03

    申请号:US29842488

    申请日:2022-06-14

    Applicant: Yang Li

    Designer: Yang Li

    Abstract: FIG. 1 is a front and top perspective view of a stirling engine, showing my new design;
    FIG. 2 is a rear and bottom perspective view thereof;
    FIG. 3 is a front elevation view thereof;
    FIG. 4 is a rear elevation view thereof;
    FIG. 5 is a left side elevation view thereof;
    FIG. 6 is a right side elevation view thereof;
    FIG. 7 is a top plan view thereof; and,
    FIG. 8 is a bottom plan view thereof.
    The broken lines in the figures illustrate portions of the stirling engine that form no part of the claimed design.

    Indoor Human Detection and Motion Tracking Using Light Reflections

    公开(公告)号:US20200073011A1

    公开(公告)日:2020-03-05

    申请号:US16119256

    申请日:2018-08-31

    Abstract: Techniques are disclosed for detecting human presence and tracking motion within a given area using light reflections. Activity is detected by receiving light encoded with source-identifying data reflected from the area and sensing changes, caused by human presence in the area, from a previously established baseline in the light reflection profile for the area. The baseline is updated over time based on human movement and/or as the area changes. Location-indicative changes in the current baseline that are greater than a certain threshold indicate a change in occupancy state of that location. In some embodiments, lightguides are used to define a specific field-of-view for the sensors. The combination of a known field-of-view and a known source of reflected light allows location of each occupant's activity to be tracked within the area. Occupancy can be detected or inferred based on activity tracked entering the area followed by lack of an exit event.

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