公开(公告)号：US4362325A

公开(公告)日：1982-12-07

申请号：US207482

申请日：1980-11-17

申请人： John E. Ortloff ,  W. Robert Wolfram, Jr.

发明人： John E. Ortloff ,  W. Robert Wolfram, Jr.

IPC分类号： F16L39/04 ,  B08B9/02 ,  F16L37/00 ,  F16L39/06 ,  F16L45/00 ,  F16L27/08

CPC分类号： F16L45/00 ,  F16L39/06

摘要： A limited angle piggable swivel comprising a stationary cylindrical shaft and a rotatable housing member circumferentially mounted around the shaft in sealing engagement. The shaft has a conduit extending from the base to the side. The housing member has a passageway extending therethrough. The rotatable housing member is mounted on the shaft to permit coaxial alignment of the inner end of the housing passageway with the side end of the shaft conduit when the housing member is rotated around the shaft to the proper position. In a preferred embodiment of the present invention, both the inner end of the passageway and the side end of the conduit are flared outwardly to enable the swivel to be pigged in either direction when the longitudinal axis of the passageway is offset from the longitudinal axis of the side end of the conduit.

摘要翻译： 一种有限角度的可调节旋转装置，其包括固定的圆柱形轴和围绕所述轴以密封接合周向安装的可旋转壳体构件。 轴具有从基部延伸到侧面的导管。 壳体构件具有延伸穿过其中的通道。 当壳体构件围绕轴旋转到适当的位置时，可旋转壳体构件安装在轴上以允许壳体通道的内端与轴导管的侧端同轴对准。 在本发明的优选实施例中，通道的内端和导管的侧端均向外张开，以使得当通道的纵向轴线偏离纵向轴线 导管的侧端。