Flow sensor responsive to fluid leakage flow within a range from above a predetermined minimum to below a predetermined maximum and nonresponsive to fluid leakage flows beyond said range
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United States of America Patent
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-
Jun 3, 1980
Grant Date -
N/A
app pub date -
Jan 24, 1979
filing date -
Jan 24, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flow sensor is provided responsive to fluid leakage flows within a range from above a predetermined minimum to below a predetermined maximum, to indicate that leakage flow is within that range and/or that maximum leakage flow has been exceeded, but nonresponsive to fluid flows below the predetermined minimum or above the predetermined maximum, to avoid giving a false indication of fluid leakage flow, comprising a flow responsive valve and a differential pressure indicator sensing differential pressure between fluid leakage flow and normal fluid flow at the valve.
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