Method for preventing deterioration of concrete pipe
    1.
    发明授权
    Method for preventing deterioration of concrete pipe 失效
    防止混凝土管道变质的方法

    公开(公告)号:US5009715A

    公开(公告)日:1991-04-23

    申请号:US438310

    申请日:1989-11-20

    申请人: R. E. Wilson

    发明人: R. E. Wilson

    IPC分类号: B08B9/02 E03F9/00

    摘要: A method and apparatus for cleansing the upper interior surfaces of a concrete sewer conduit, the apparatus including the concrete sewer pipe and a plurality of spray nozzles spaced apart and adapted to be introduced into and disposed in and along a length of concrete sewer to enable continuous or intermittent spraying of the upper interior surface or, alternatively, to be permanently mounted along the length of the concrete sewer conduit when newly constructed.

    摘要翻译: 一种用于清洁混凝土下水道管道的上部内表面的方法和设备,该设备包括混凝土下水道管和间隔开的多个喷嘴,并且适于被引入并设置在混凝土下水道的长度上并且沿着混凝土下水道的长度布置,以使得连续 或间歇地喷射上部内表面,或者替代地,当新构造时,沿着混凝土下水道管道的长度永久地安装。

    Apparatus for preventing deterioration of concrete pipe
    2.
    发明授权
    Apparatus for preventing deterioration of concrete pipe 失效
    防止混凝土管道变质的装置

    公开(公告)号:US4899770A

    公开(公告)日:1990-02-13

    申请号:US44405

    申请日:1987-04-30

    申请人: R. E. Wilson

    发明人: R. E. Wilson

    IPC分类号: B08B9/02 E03F9/00

    摘要: Apparatus for cleansing the upper interior surfaces of a concrete sewer conduit, the apparatus including the concrete sewer pipe and a plurality of spray nozzles spaced apart and adapted to be introduced into and disposed in and along a length of concrete sewer to enable continuous or intermittent spraying of the upper interior surfaces or, alternatively, to be permanently mounted along the length of the concrete sewer conduit when newly constructed.

    摘要翻译: 用于清洁混凝土下水道管道的上部内表面的设备,该设备包括混凝土下水道管道和间隔开并适于被引入并沿其长度的混凝土下水道设置并允许连续或间歇喷洒的多个喷嘴 或者当新构造时,沿着混凝土下水道管道的长度永久地安装。