Cleaning pig
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United States of America Patent
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Oct 9, 2012
Grant Date -
Jul 1, 2010
app pub date -
May 30, 2006
filing date -
Jan 20, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
A cleaning pig for a pipeline for long-distance transportation of a fluid material is advanced in the pipeline in a travel direction by the fluid material transported in the pipeline. The cleaning pig has a pig body and two collars connected to the pig body and spaced apart from one another. The pig body and the collars fill a pipe cross-section of the pipeline. An intermediate space is delimited between the two collars. A pressure opening is arranged at a trail end of the pig body in the travel direction. A pressure conduit connects the pressure opening to the intermediate space. A suction device is arranged in the intermediate space. A suction outlet is connected by a suction conduit to the suction device. The pressure conduit is connected to at least one jet opening directed with a jet action against an inner wall of the pipeline.
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Family
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