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    • 2. 发明授权
    • Sealing device for pipes
    • 管道密封装置
    • US6089618A
    • 2000-07-18
    • US46350
    • 1998-03-23
    • Wieland NeumannLennart Jornhagen
    • Wieland NeumannLennart Jornhagen
    • F16L21/02F16J15/10F16L21/03F16L47/00
    • B28B21/563F16L21/03
    • A sealing device for sealing an annular space between a socket and a spigot end introduced therein comprises a sealing ring (10) and an annular element (12) connected therewith and consisting of a non-elastic cellular plastic, for example styrene cellular plastic. The sealing device is intended to be moulded into the socket at the cylindrical inner surface thereof with the sealing ring (10) positioned adjacent the free end of the socket and the annular cellular plastic element (12) positioned axially inside the sealing ring. The annular element (12) consisting of non-elastic cellular plastic is formed with recesses (22) which are positioned at or in connection with the inner surface of the annular element for allowing a radial expansion of the inner surface of the annular element under the influence of the spigot end introduced into the socket.
    • 一种密封装置,其用于密封插入件和引入其中的插口端之间的环形空间,包括密封环(10)和与之连接的环形元件(12),并由非弹性多孔塑料(例如苯乙烯泡沫塑料)组成。 密封装置旨在在其圆柱形内表面处模制到插座中,密封环(10)邻近插座的自由端定位并且环形多孔塑料元件(12)轴向位于密封环内。 由非弹性多孔塑料构成的环形元件(12)形成有凹槽(22),其设置在环形元件的内表面上或与环形元件的内表面相连,用于允许环形元件的内表面径向膨胀 插口插入插座的影响。