Pipe inspection system
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United States of America Patent
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-
Jan 28, 1992
Grant Date -
N/A
app pub date -
Mar 22, 1991
filing date -
Mar 31, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of inspecting a water pipeline while the pipeline is full of water comprises providing a liquid-tight casing housing a video camera and lights, coupled to a cable housing both optical and electrical conductors. A drogue is attached to the casing and the camera pod and drogue are launched through the sidewall of the pipeline via a launch chamber. The camera pod and cable are neutrally buoyant and can be deployed several kilometers along the pipeline for inspecting the pipeline and recovered again into the launch chamber. The advantage of this system over conventional systems is that much longer lengths of pipeline can be inspected from a single location.
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