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1. 发明授权

US3936121A Jumper cables for sparkling polarity indicator 失效
标题翻译：闪光极性指示灯的跳线
公开(公告)号：US3936121A
公开(公告)日：1976-02-03
申请号：US498391
申请日：1974-08-19
申请人： Gerhard Karl Leinberger
发明人： Gerhard Karl Leinberger
IPC分类号： H01R11/24 , H01R11/22
CPC分类号： H01R11/24 , Y10S320/15
摘要： Jumper cables or battery charging cables for automotive use and the like are disclosed in which at least one of the cable's gripper jaws or clamps is provided with a length of coiled heater-resistance wire. The length of wire is clamped to the portion of the jaw handle opposite that to which the jumper cable wire itself is connected, and extends a short distance outwardly of the handle. The coiled heater-resistance wire is chosen as to have a preferred resistance in the order of 0.5 to 2 ohms and has an exposed free end which may be contacted to the battery terminal prior to connecting the gripper jaws to the terminal to indicate whether the charger cables have been correctly or incorrectly connected. If the connection is incorrect, the resistance wire will sparkle visibly and safely at the point of contact with the terminal, thus indicating the the connection is wrong. If no visible sparkle is seen then the charger cables may be clamped with the knowledge that the connection is correct and safe.
摘要翻译：公开了用于汽车用途的跳线电缆或电池充电电缆等，其中电缆的夹爪或夹具中的至少一个设置有一段长度的线圈加热器电阻线。电线的长度被夹紧到钳口手柄的与跳线电缆线本身连接的相对的部分，并且在手柄外部延伸一小段距离。线圈加热器电阻线选择为具有0.5至2欧姆量级的优选电阻，并且具有暴露的自由端，其可在将夹爪连接到端子之前与电池端子接触以指示充电器电缆已正确连接或连接不正确。如果连接不正确，电阻线会在与终端接触点处明显安全地闪烁，从而表明连接错误。如果没有看到可见的闪光灯，则充电器电缆可能被夹紧，知道连接正确和安全。

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