Leak detection system

Measuring and testing – With fluid pressure – Leakage

Patent

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Details

73313, 340605, G01M 332, G01F 2310

Patent

active

045051488

ABSTRACT:
Leakage from a gasoline storage tank or other receptacle is detected by differentiating the output from a liquid-level monitoring transmitter with stepped voltage output and applying the differentiated transmitter signal through an amplifier to a latch controlled relay for activating an alarm. An interlock circuit is provided for deenergizing the detector part of the system whenever the contents of the tank is being altered intentionally.

REFERENCES:
patent: 3939383 (1976-02-01), Alm
patent: 4353245 (1982-10-01), Nicolai
patent: 4361835 (1982-11-01), Nagy

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