Device for plugging the interior of a pipe,申请号EP19940307213-传众专利搜索

Device for plugging the interior of a pipe

申请公布号：EP0681139(B1)

申请号：EP19940307213

申请日期：1994.10.03

申请公布日期：2000.04.19

申请人：

TDW DELAWARE, INC.

发明人：FREEMAN, ERIC N.;BLEVINS, DAVID L.;RALLS, GENE R.;ANDREW, BILL D.;WILSON, BUDDY A.;OSBURN, COY D.

分类号：F16L41/00;F16L55/10;F16L55/105

主分类号：F16L41/00

摘要：An apparatus for plugging the interior of a pipe having an internal cylindrical surface, the pipe being penetrated by an access opening, the plugging device comprising: an upright tubular plugger housing having means at a lower end for attachment to a pipe in communication with an opening in the pipeline; an elongated vertical cylindrical control bar having a plugger at a lower end thereof, the plugger being operable to plug a pipe after it has been inserted through an opening into the pipe, comprising: an arrangement of a collar and first and second closure plates with respective truncated spherical surfaces to allow swivelling of a control bar placed therethrough in order to position the plugger in the pipe. or a control bar formed of two concentric members each provided with manipulating means. <IMAGE>