Fail-safe sensor system
    1.
    发明授权
    Fail-safe sensor system 失效
    故障安全传感器系统

    公开(公告)号:US4682153A

    公开(公告)日:1987-07-21

    申请号:US790445

    申请日:1985-10-23

    摘要: A fail-safe sensor system to provide a positive indication of the proper operation of a sensor system by accounting for the return signals from an active zone and a monitor zone beyond. Search signals, provided by a transducer operating in the transmit mode, are transmitted within an active zone within which objects to be detected are expected to be located. Unreturned search signals are permitted to travel beyond the active zone into a monitor zone beyond and objects in such monitor zone cause return signals which are also employed. A counter feed from a free running clock source is permitted to run up a count whose predetermined limit represents the estimated maximum time period during which a sensor system should operate without contacting an object. Return signals, whether from objects in the active zone or the monitor zone, reset the counter back to zero. The absence of a return signal permits the counter to exceed its predetermined limit and produce an output signal which can be directed to control circuitry, an alarm or logic circuitry to determine if the system is operative.

    摘要翻译: 一种故障安全传感器系统,通过计算来自活动区域和监视区域的返回信号,提供传感器系统的正确操作的正向指示。 由在发射模式下操作的换能器提供的搜索信号在预期要被检测的对象被定位的活动区域内传输。 允许未返回的搜索信号超出活动区域进入超出监视区域,并且该监视区域中的对象导致也被使用的返回信号。 允许来自自由运行的时钟源的计数器馈送运行计数,其预定限制表示传感器系统应该在不接触物体的情况下运行的估计的最大时间段。 无论从活动区域还是监视区域中的对象返回信号,将计数器重新设置为零。 没有返回信号允许计数器超过其预定极限并产生输出信号,该输出信号可以被引导到控制电路,报警器或逻辑电路,以确定系统是否可操作。

    Electrical device with terminal retainer
    2.
    发明授权
    Electrical device with terminal retainer 失效
    带端子保持器的电气设备

    公开(公告)号:US4195901A

    公开(公告)日:1980-04-01

    申请号:US848572

    申请日:1977-11-04

    申请人: Paul F. Lindlau

    发明人: Paul F. Lindlau

    IPC分类号: H01R4/36 H01R9/16 H01R9/10

    CPC分类号: H01R9/16 H01R4/36

    摘要: An electrical terminal block is provided with a plurality of terminal-receiving cavities therein and a corresponding plurality of electrical terminal elements disposed within the terminal-receiving cavities. Each terminal-receiving cavity includes a protruding retention member extending into the terminal-receiving cavity. Each terminal element includes a chamfered key member thereon, which is adapted to be captured and to interlock with a complementary retention member during insertion of the terminal elements into their respective cavities. The retention members and their corresponding cooperatively engaging chamfered key members selectively provide means for securing or facilitating removal of the inserted terminal elements.

    摘要翻译: 电端子块在其中设置有多个端子容纳腔,以及设置在端子容纳腔内的对应的多个电端子元件。 每个端子容纳腔包括延伸到端子容纳腔中的突出的保持构件。 每个端子元件包括其上的倒角键构件,其适于被捕获并且在将端子元件插入其相应的空腔期间与互补的保持构件互锁。 保持构件及其对应的配合接合的倒角键构件选择性地提供用于固定或便于移除插入的端子元件的装置。

    Terminal block with encapsulated heat sink
    4.
    发明授权
    Terminal block with encapsulated heat sink 失效
    终端块与封装的散热片

    公开(公告)号:US4082407A

    公开(公告)日:1978-04-04

    申请号:US798900

    申请日:1977-05-20

    摘要: A printed circuit panel connector comprises an encased heat sink for maintaining all electrical connections to the connector at substantially the same temperature. The heat sink is disposed between a plurality of tubular electrical connector elements adapted to receive corresponding external conductors, and a like plurality of electrical contact elements for making electrical connections between each one of the tubular electrical connector elements and a corresponding terminal adjacent the edge of a printed circuit board. Portions of the contact elements are in spring loaded contact with the heat sink such that the heat sink positively retains the contact elements within the terminal block body and maintains the various tubular electrical connector elements and electrical contact elements at substantially the same temperature.

    Louvered connectors and contact elements thereof
    5.
    发明授权
    Louvered connectors and contact elements thereof 失效
    百叶连接器及其接触元件

    公开(公告)号:US4039238A

    公开(公告)日:1977-08-02

    申请号:US683527

    申请日:1976-05-05

    CPC分类号: H01R13/187

    摘要: Connectors having strip member contact elements wherein louvers or contact fingers extend in dissimilar extents from opposed sides of the strip member. Method is also disclosed for enhancing contact surface area between the extremities of contact fingers and complementary contact surfaces.

    摘要翻译: 具有带状构件接触元件的连接器,其中百叶窗或接触指状物从带状构件的相对侧以不同的范围延伸。 还公开了用于增强接触指的末端和互补接触表面之间的接触表面积的方法。