Pipeline pig
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 2, 2013
Grant Date -
Feb 11, 2010
app pub date -
Oct 8, 2009
filing date -
Mar 9, 2004
priority date (Note) -
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Abstract
A device for travelling along a pipeline having fluid flowing along it comprises a turbine for extracting power from the fluid flow and using that power to move the device along the pipeline against the fluid flow. The device is arranged in a series of coupled modules.
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