Pipeline inspection system
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United States of America Patent
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May 10, 2011
Grant Date -
Oct 1, 2009
app pub date -
May 14, 2009
filing date -
Sep 8, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
An inspection system configured for “no-blow” use in a pressurized gas pipeline includes a push rod wound around a spool for convenient deployment and portability. A camera disposed on one end of the push rod is configured to relay images back to a monitor. A motor is configured for remote actuation by an operator, and provides for self-propelled movement of the camera in the pipeline. An entry tube is configured for sealed entry into the pipeline to facilitate entry of the camera and push rod. A guide shoe at the end of the entry tube provides a smooth transition for the camera and push rod as it leaves the entry tube and enters the pipeline. An automatically deployable and retractable positioning system is used to keep the camera away from an interior surface of the pipeline, and in the case of smaller pipelines, centers the camera within the pipeline.
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