Double-wall underground container for storing liquids and leak d

Details Double-wall underground container for storing liquids and leak d Double-wall underground container for storing liquids and leak d

1985-06-03

1985-12-31

Hart, Charles

Measuring and testing

With fluid pressure

Leakage

220426, 220441, 340605, G01M 304

Patent

active

045612927

ABSTRACT:
An aboveground reservoir is connected to the space between inner and outer tanks of an underground double-wall storage container for liquids. Leak detecting liquid fills the space between the tanks and extends to a surface level in the reservoir. Sensing means detects a drop in the level of the liquid in the reservoir and activates a signal when a leak develops in either of the inner and outer tanks.

REFERENCES:
patent: 2927437 (1960-03-01), Rae
patent: 3661294 (1972-05-01), Pearson et al.
patent: 4012945 (1977-03-01), Bergstrand
patent: 4110739 (1978-08-01), Kidd

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