Anti-theft detector responsive to a chemical agent
    1.
    发明授权
    Anti-theft detector responsive to a chemical agent 失效
    防盗检测器响应于化学试剂

    公开(公告)号:US4603326A

    公开(公告)日:1986-07-29

    申请号:US650276

    申请日:1984-09-14

    申请人: Donald J. Freed

    发明人: Donald J. Freed

    IPC分类号: G08B13/14 G08B13/24

    摘要: Anti-theft device, tag assembly and article theft detection system. An anti-theft device having a thin elongated sealed container (e.g., a closed tube) containing a chemical agent is attached to each article to be protected. One or more detectors capable of detecting the chemical agent are placed in the area to be protected. Removal of the anti-theft device, which requires cutting or tearing, causes the chemical agent to be released and to be detected by a detector. This in turn registers an alarm. The anti-theft device may be combined with a tag to form a tag assembly. The tag may contain a passive transponder of a type used in electronic article surveillance systems. A transmitter and receiver placed near the exit from the protected area will cause an alarm to be activated if someone attempts to remove a protected article with tag attached from the protected area.

    摘要翻译: 防盗装置,标签装配和物品盗窃检测系统。 具有包含化学试剂的细长密封容器(例如封闭管)的防盗装置附着到待保护的每个物品上。 能够检测化学试剂的一个或多个检测器被放置在要保护的区域中。 去除需要切割或撕裂的防盗装置导致化学试剂被释放并由检测器检测。 这反过来报警。 防盗装置可以与标签组合以形成标签组件。 标签可能包含用于电子物品监控系统的类型的无源应答器。 放置在受保护区域出口附近的发射器和接收器将导致警报被激活,如果有人试图从受保护区域附加标签去除受保护的物品。

    Technique for electrodeposition of water-based polymeric coating
    2.
    发明授权
    Technique for electrodeposition of water-based polymeric coating 失效
    水性聚合物涂层电沉积技术

    公开(公告)号:US4132608A

    公开(公告)日:1979-01-02

    申请号:US775770

    申请日:1977-03-09

    IPC分类号: C09D5/44 C25D5/02 C25D11/00

    CPC分类号: C09D5/4469

    摘要: A water-based polymeric coating comprising a novolak resin is deposited electrolytically from a solution of a novolak resin upon a conductive substrate at an initial current density ranging from 10-30 milliamperes per square centimeter. The resultant coating, after cross linking by subsequent chemical treatment, is flexible, firmly adherent and evidences good thermal stability and insulation characteristics, so suggesting its use as a cover coat for printed circuits.

    摘要翻译: 包含酚醛清漆树脂的水性聚合物涂层以10-30毫安/平方厘米的初始电流密度从酚醛清漆树脂的溶液中电解沉积在导电基材上。 所得涂层在通过后续化学处理交联后是柔性的,牢固粘附的并且证明了良好的热稳定性和绝缘特性,因此表明其用作印刷电路的覆盖层。