Method of and apparatus for burying stiff-walled pipes in the ground
    3.
    发明授权
    Method of and apparatus for burying stiff-walled pipes in the ground 失效
    在地面埋设硬壁管的方法和设备

    公开(公告)号:US3916636A

    公开(公告)日:1975-11-04

    申请号:US48845174

    申请日:1974-07-15

    CPC classification number: E21B7/046

    Abstract: A method of and apparatus for burying a stiff-walled pipe in the ground, is disclosed, in which the individual pipe is forced forward from an access pit directly into the earth, while water flows through the interior of the pipe from the rearward end thereof, as seen in the direction of advancement, and emerges at the forward end of the pipe.

    Abstract translation: 公开了一种在地面上埋设刚性壁管的方法和装置,其中将各个管道从进入坑直接推入地面,同时水从其后端流过管道内部 ,从前进方向看,出现在管道的前端。

Patent Agency Ranking