Apparatus for driving grade stakes
    1.
    发明授权
    Apparatus for driving grade stakes 失效
    用于驾驶等级的设备

    公开(公告)号:US5667021A

    公开(公告)日:1997-09-16

    申请号:US542441

    申请日:1995-10-12

    CPC classification number: E02D7/06 E04H17/263

    Abstract: A grade stake driver includes a frame for supporting a hammer and a grade stake under the hammer. A shuttle secured to the hammer movably mounts onto the frame to connect the hammer to the frame. A hoist secured to the shuttle mounts onto the frame to permit the raising and lowering of the hammer. A receiver mounted on the frame outputs a control signal in response to a transmitted signal. A switch mounted on the frame transforms the control signal into an on/off signal. A relay mounted on the frame connects the hammer to a power source in response to the on/off signal, thereby effecting the driving of the grade stake.

    Abstract translation: 级别的利益相关者包括用于支撑锤子的锤架和在锤下的等级桩。 固定到锤的梭子可移动地安装在框架上以将锤连接到框架。 固定在梭子上的提升机安装在框架上,以允许锤子的升高和降低。 安装在框架上的接收器响应于发送的信号输出控制信号。 安装在框架上的开关将控制信号转换成开/关信号。 安装在框架上的继电器响应于开/关信号将锤连接到电源,从而实现等级桩的驱动。

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