OVERDRILLING APPARATUS
    1.
    发明申请
    OVERDRILLING APPARATUS 有权
    装载装置

    公开(公告)号:US20070119283A1

    公开(公告)日:2007-05-31

    申请号:US11551391

    申请日:2006-10-20

    IPC分类号: B26D3/00

    摘要: An apparatus for overdrilling a buried line includes a rotatably driven thrust linkage and/or traction linkage, and has a forward end which is connected to a ring-shaped to hollow cylindrical overdrilling head which embraces the line. The overdrilling head is provided interiorly with a centering protrusion for spontaneous centering of the overdrilling head in concert with the line.

    摘要翻译: 用于过钻埋置线的装置包括可旋转驱动的推力联动装置和/或牵引联动装置,并且具有连接到包围该线的环形至中空圆柱形钻头的前端。 内钻头内部设有一个定心突起,用于与钻头一起自动对中钻头。

    Overdrilling apparatus
    2.
    发明授权
    Overdrilling apparatus 有权
    过钻机

    公开(公告)号:US07963723B2

    公开(公告)日:2011-06-21

    申请号:US11551391

    申请日:2006-10-20

    IPC分类号: E21B7/28

    摘要: An apparatus for overdrilling a buried line includes a rotatably driven thrust linkage and/or traction linkage, and has a forward end which is connected to a ring-shaped to hollow cylindrical overdrilling head which embraces the line. The overdrilling head is provided interiorly with a centering protrusion for spontaneous centering of the overdrilling head in concert with the line.

    摘要翻译: 用于过钻埋置线的装置包括可旋转驱动的推力联动装置和/或牵引联动装置,并且具有连接到包围该线的环形至中空圆柱形钻头的前端。 内钻头内部设有一个定心突起,用于与钻头一起自动对中钻头。