Fluid metering verification system

Details Fluid metering verification system Fluid metering verification system

1992-11-18

1994-05-24

Swann, III, Glen R.

Communications: electrical

Condition responsive indicating system

Specific condition

340606, 340608, 340611, 417 63, G08B 2100

Patent

active

053152948

ABSTRACT:
A positive verification of fluid flow from a reservoir through a metering pump is provided by monitoring the downstream fluid pressure fluctuations caused in the fluid conduit by inserting a pressure sustaining valve in it. A pressure switch or similar device coacts with a pulse timer to monitor the periodic pressure fluctuations in the conduit. A lapse in the periodic pressure fluctuations for a specified time allows the timer to activate an alarm signal.

REFERENCES:
patent: 4007755 (1977-02-01), Lerner et al.
patent: 4142539 (1979-03-01), Shih et al.
patent: 4947153 (1990-08-01), Berger
patent: 5133391 (1992-07-01), Johansson
patent: 5237310 (1993-08-01), Smith

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