Rehabilitation of water supply pipes
    3.
    发明授权
    Rehabilitation of water supply pipes 失效
    供水管道修复

    公开(公告)号:US06644356B1

    公开(公告)日:2003-11-11

    申请号:US09958901

    申请日:2002-01-22

    IPC分类号: F16L5516

    摘要: Device for use in rehabilitation of water supply pipes includes a tubular liner (10) which is deployed through a pipe (11) for example by a line attached to a messenger pig which is propelled through the pipe. The liner (10) has a multi-lobed pleated cross-section, and is of a polyolefin elastomer material, e,g, a substantially linear ethylene inter-polymer. The liner is extruded and die drawn during extrusion to produce a reduced diameter highly oriented structure.

    摘要翻译: 用于供水管道的修复的装置包括管状衬套(10),其通过管道(11)展开,例如通过连接到通过管道推进的信使猪的管线。 衬套(10)具有多叶折叠横截面,并且是聚烯烃弹性体材料,即基本上线性的乙烯聚合物。 衬套在挤出过程中被挤出和模压,以产生直径缩小的高度取向的结构。