公开(公告)号：US06532992B1

公开(公告)日：2003-03-18

申请号：US09603407

申请日：2000-06-26

申请人： James Elliott Holden

发明人： James Elliott Holden

IPC分类号： F16L5906

CPC分类号： F16L57/005

摘要： A pipe flange cover for temporarily covering a pipe opening and a pipe flange at an end of a pipe, the cover having a front face and a rear face, the rear face having a center portion surrounded by a peripheral portion of the rear face, the peripheral portion formed with a plurality of axially projecting spring lugs; the center portion adapted to engage a front side of the pipe flange and to seal the pipe opening, the spring lugs adapted for insertion into bolt holes on the pipe flange. The center portion is axially offset from the peripheral portion, and connected thereto by an integral bellows.

摘要翻译： 用于临时覆盖管道开口的管道凸缘盖和在管端部处的管法兰，所述盖具有前表面和后表面，所述后表面具有由所述后表面的周边部分包围的中心部分， 周边部分形成有多个轴向突出的弹簧片; 所述中心部分适于接合所述管道凸缘的前侧并且密封所述管道开口，所述弹簧凸耳适于插入到所述管道凸缘上的螺栓孔中。 中心部分与周边部分轴向偏移，并通过一体式波纹管与其连接。