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    • 7. 发明授权
    • Pipe joint construction and coupling therefor
    • 管接头结构及联轴器
    • US5362112A
    • 1994-11-08
    • US122773
    • 1993-09-16
    • Larry J. HamiltonThomas W. HawkinsRichard P. Shortman
    • Larry J. HamiltonThomas W. HawkinsRichard P. Shortman
    • E03F3/04E21B17/08F16L25/00F16L55/165F16L17/06
    • F16L25/0018E03F3/04E21B17/08F16L55/165Y10S285/91
    • A pipe joint and coupling construction particularly suited for joining large diameter plastic pipe as used in sewer relining. The construction comprises first and second sections of cylindrical pipe having axially aligned opposed end walls with a continuous groove formed in each end wall. The groove in each end wall is axially aligned with the groove in the opposed end wall and cooperates therewith to form a gasket receiving chamber. The coupling member is adapted to be mounted in the gasket receiving chamber for sealingly joining the pipe sections. It comprises a rigid annular core ring for mounting in the chamber to extend axially into each of the axially aligned grooves. A resilient compressible elastomeric covering is positioned over the core ring and carried circumferentially continuous radially extending protrusions which are sized to be sealingly compressed between the core ring and the side walls of the grooves.
    • 管接头和联轴器结构特别适用于连接大口径塑料管,用于下水道改装。 该结构包括具有轴向对齐的相对端壁的圆柱形管的第一和第二部分,在每个端壁中形成有连续的槽。 每个端壁中的凹槽与相对的端壁中的凹槽轴向对准并与之配合以形成垫圈接收室。 联接构件适于安装在垫片接收室中,用于密封地连接管段。 它包括刚性的环形芯环,用于安装在腔室中以轴向延伸到每个轴向对准的凹槽中。 弹性可压缩弹性体覆盖物定位在芯环上方并承载周向连续的径向延伸的突出部,其大小被密封地压缩在芯环和槽的侧壁之间。