Piping leakage detecting apparatus
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United States of America Patent
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-
Feb 2, 1999
Grant Date -
N/A
app pub date -
Jul 30, 1997
filing date -
Oct 17, 1995
priority date (Note) -
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status (Latency Note)
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Abstract
A piping leakage detecting apparatus includes a high pressure gas supply source, a gas implement connected to the high pressure gas supply source via a pipeline, and a switching device mounted on the pipeline for selectively opening and closing the pipeline. A pressure detecting device is mounted between the gas implement and the switching device for detecting the gas pressure inside the pipeline. A leakage judging device is provided to judge that gas leaks when no gas is being used and when a pressure drop is detected based on an output from the pressure detecting device, while the pipeline is being opened and closed by the switching device.
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