METHOD FOR FABRICATING PIPELINE COATING SAMPLES CONTAINING SYNTHETIC DISBONDS FOR ESTIMATING A CONDITION OF A COATING OF AN UNDERGROUND PIPELINE
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United States of America Patent
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Apr 12, 2011
Grant Date -
May 5, 2011
app pub date -
Dec 10, 2010
filing date -
Nov 10, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A method for fabricating pipeline coating samples containing synthetic disbonds to be used in estimating a condition of a coating of an underground pipeline. The method includes the steps of providing a section of a pipe having a predetermined diameter and length; installing end caps on opposing ends of the pipe section, each end cap having an electrical connection extending therefrom; applying a material having a low dielectric coefficient around the pipe segment between the end caps to simulate an air-filled disbond; varying the coverage area of material to simulate various disbond sizes; and wrapping the pipe segment and end caps with tape to cover the material having a low dielectric coefficient.
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