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    • 10. 发明授权
    • Cup for use on a pipeline
    • 杯子用于管道
    • US5295279A
    • 1994-03-22
    • US975638
    • 1993-01-13
    • Andrew J. Cooper
    • Andrew J. Cooper
    • B08B9/04B08B9/055
    • B08B9/0557
    • An improved cup for use on pipeline pigs is formed of a unitary material, such as urethane, the cup having a forward end, a rearward end and a central axis and with an integral flange portion providing means for securing the cup to a pipeline pig, the cup having an intermediate portion extending rearwardly from the flange portion, the intermediate portion having an interior frustro-conical surface and an exterior frustro-conical surface and the cup having a rearward portion, the external surface of the rearward portion curving in an arc to a generally cylindrical configuration. The cup preferably has a plurality of slits formed in the rearward portion, each of the slits being in the plane of the cup central axis and most preferably includes V-shaped grooves in the cup rearward portion external and/or internal surfaces, the grooves being of V-shaped configuration. The provision of the rounded exterior surface of the cup reduces the likelihood of the cup catching on obstructions within the pipeline and the provision of the slits and grooves functioning to increase flexibility of the cup allowing it to more readily deflect inwardly when obstructions in a pipeline interior wall are encountered.
    • 用于管道猪的改进的杯由诸如聚氨酯的整体材料形成,杯具有前端,后端和中心轴线,并且整体式凸缘部分提供用于将杯子固定到管道猪的装置, 所述杯具有从所述凸缘部分向后延伸的中间部分,所述中间部分具有内部截头圆锥形表面和外部截头圆锥形表面,并且所述杯具有后部,所述后部的外表面弯曲成弧形 一般是圆柱形的。 杯子优选地具有形成在后部的多个狭缝,每个狭缝在杯中心轴线的平面中,最优选地包括杯后部部分外部和/或内部表面中的V形槽,凹槽是 的V形配置。 提供杯的圆形外表面减少了杯塞在管道内的障碍物上的可能性,并且提供狭缝和凹槽用于增加杯子的柔性,从而允许其在管道内部的障碍物时更容易向内偏转 遇到墙。