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    • 4. 发明申请
    • THERMAL SWITCH WITH SELF-TEST FEATURE
    • 具有自检功能的热开关
    • US20060208846A1
    • 2006-09-21
    • US10907086
    • 2005-03-18
    • George DavisByron Scott
    • George DavisByron Scott
    • H01H37/52H01H37/04
    • H01H37/54H01H2300/052
    • A normally open thermal switch (200) having a bimetallic disk (18) is configured for operational testing in its installed position when exposed to a changing temperature by a test box (400) having a power source (400a). The in-place testing advantageously confirms triggering action of the switch by an event indicator (400c) at the operational temperatures designed into the switch (200). The temperature of the triggering action is presented on a temperature display (400b) and recorded by a data recorder (400d) of the test box (400). The switch (200) incorporates a heating element (24c) to heat changing the bimetallic disk (18) to snap activate at the operative temperatures. The thermal switch (200) is coupled with the test box (400) to confirm its operation without having to remove the switch from its installed location.
    • 具有双金属盘(18)的常开热开关(200)被配置为当通过具有电源(400a)的测试箱(400)暴露于变化的温度时,在其安装位置进行操作测试。 就地测试有利地通过事件指示器(400c)在设计到开关(200)中的操作温度下有效地确认开关的触发动作。 触发动作的温度呈现在温度显示器(400b)上,并由测试盒(400)的数据记录器(400d)记录。 开关(200)包括加热元件(24c)以加热改变双金属盘(18)以在操作温度下快速启动。 热开关(200)与测试箱(400)耦合以确认其操作,而不必从其安装位置移除开关。
    • 9. 发明授权
    • Enhanced speed calling
    • 增强速度通话
    • US5272748A
    • 1993-12-21
    • US703642
    • 1991-05-21
    • George Davis
    • George Davis
    • H04M3/44H04M3/487H04M17/02H04M7/00H04M17/00
    • H04M3/44H04M17/02H04M3/487H04M3/4872
    • Enhanced speed calling is provided on a network basis for public access telephone stations such as coin telephones and wireless public Telepoint services stations. The system permits single digit access to voice recorded announcements regarding long distance dialing instruction and service provider identification information. The dialing of a common generic abbreviated code word triggers the delivery of a pre-established interexchange carrier recording identifying the presubscribed carrier to the user at the calling public access telephone station. The information card presently utilized at public access telephone stations, such as coin stations, is replaced with a generic card providing information to lead the caller to use the abbreviated code word to initiate identification of the presubscribed interexchange carrier for that public access telephone station. The speed calling feature also permits the use of generic abbreviated code words to obtain connection with public service providers convenient to the public access telephone station from which a call is made. The enhanced speed dialing is adapted to all stored program control switches without the addition of extra equipment and concomitant capital investment.
    • 在诸如硬币电话和无线公共Telepoint服务站之类的公共接入电话站的网络基础上提供增强的速度呼叫。 该系统允许单个数字访问关于长途拨号指令和服务提供商识别信息的语音记录通知。 通用通用缩写代码字的拨号触发在主叫公共接入电话台向用户发送一个预先确定的预先载入的载波记录。 目前在公共接入电话站(例如硬币站)上使用的信息卡被替换为通用卡提供信息,以引导呼叫者使用缩写码字来启动该公共接入电话台的预订的交换机的识别。 速度呼叫功能还允许使用通用缩写代码字来获得与方便于进行呼叫的公共接入电话站的公共服务提供商的连接。 增强的快速拨号适用于所有存储的程序控制开关,而不增加额外的设备和伴随的资本投入。