Liquid level multiplier and leak detection system for storage ta

Details Liquid level multiplier and leak detection system for storage ta Liquid level multiplier and leak detection system for storage ta

1989-10-03

1990-11-27

Cuchlinski, Jr., William A.

Measuring and testing

Liquid level or depth gauge

With other measuring device

73302, 73309, 733225, 73301, 73 492, 73448, 73447, G01M 326, G01M 316, G01M 332, G01F 2318

Patent

active

049727109

ABSTRACT:
A tank leak detection system in which a liquid level multiplier is connected to a differential pressure transmitter one side of which may be piped back into the tank to compensate for internal changes in tank pressure. A capillary having a small bore connects the transmitter and the multiplier to reduce temperature effects. Changes in tank temperature may be sensed, i.e., by a long bulb thermometer and either fed to a temperature transmitter to convert temperature change into a single to a computer used to calculate true tank level and output a signal proportional thereto or fed to the level transmitter to compensate for temperature changes.

REFERENCES:
patent: 1150122 (1915-08-01), Jeavons
patent: 1603390 (1926-10-01), Knobloch
patent: 2185205 (1940-01-01), Linebarger
patent: 2368616 (1945-02-01), Rosenberger
patent: 2637999 (1953-05-01), Klebba
patent: 2743340 (1956-04-01), Zoltanski
patent: 3017883 (1962-10-01), Dickinson, Jr.
patent: 3808893 (1974-05-01), Jinno et al.
patent: 4358956 (1982-11-01), Ruben et al.
patent: 4571987 (1986-02-01), Horner
patent: 4604893 (1986-08-01), Senese et al.

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