System for inspection of pipelines
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United States of America Patent
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-
May 29, 2001
Grant Date -
N/A
app pub date -
Jun 14, 1999
filing date -
Sep 19, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for inspecting pipelines, especially in the coupling between pipe parts, comprises a radiation source and a detector device or a photographic film. The pipeline includes indicators which are laid into the pipeline material and have a differing absorption of radiation than the material comprising the layers of the pipeline in which the indicators are formed. By placing the radiation source and the detector device (or photographic film) on opposite sides of the pipeline, or on opposite sides of a wall of the pipeline, the position of the indicators may be detected, and any displacement can be measured.
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