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    • 7. 发明授权
    • Device and method for the plugging of services in conduits
    • 在管道中堵塞服务的设备和方法
    • US08272808B1
    • 2012-09-25
    • US13473680
    • 2012-05-17
    • Anthony SudanoMichael DavisonBenoît Côté
    • Anthony SudanoMichael DavisonBenoît Côté
    • F16L55/18
    • F16L55/1612F16L55/18Y10T137/598
    • A plug for a tubular service entrance of a conduit, wherein the plug includes a core body having a central hollow channel extending from a first end to second end of the core body; at least one flexible fin extending radially outwardly from the core body and having an outer diameter greater than the inner diameter of the tubular service entrance so that the plug is adapted to fit tightly into the tubular service entrance, and wherein the at least one flexible fin is deformable to adapt to the shape of the service entrance and apply a lateral force against the inner diameter of the service entrance. A plug dispensing magazine for storing and dispensing service entrance plugs to be service entrances of a conduit prior to installation of a liner in the conduit and a method of sealing the service entrances.
    • 一种用于管道的管状服务入口的塞子,其中塞子包括具有从芯体的第一端延伸到第二端的中心中空通道的芯体; 至少一个柔性翅片,其从所述芯体径向向外延伸并且具有大于所述管状服务入口的内径的外径,使得所述塞子适于紧密地配合到所述管状服务入口中,并且其中所述至少一个柔性翅片 可变形以适应服务入口的形状,并且对服务入口的内径施加横向力。 一种塞子分配盒,用于在将衬套安装在管道中之前存储和分配服务入口插头作为导管的入口,以及密封服务入口的方法。