Device for and method of detecting leaks in a liquid storage res

Details Device for and method of detecting leaks in a liquid storage res Device for and method of detecting leaks in a liquid storage res

1982-09-02

1983-06-07

Kazenske, E. R.

Measuring and testing

With fluid pressure

Leakage

73292, G01M 332

Patent

active

043865259

ABSTRACT:
An underground storage tank is filled with liquid (e.g., gasoline) until the level of the liquid in the tank rises into the fill-pipe leading from the surface of the ground to interior of the tank. The change in elevation of the liquid in the fill-pipe is monitored over a period of time. The temperature of the liquid within the tank is monitored over the same period of time. Evaporation from the surface of the liquid in the fill-pipe is monitored over the same period of time. A change in elevation of the liquid in the fill-pipe below the level caused by expansion or contraction due to temperature change, and by evaporation loss, indicates a leak in the tank.

REFERENCES:
patent: 2760373 (1956-08-01), Quist
patent: 3580055 (1971-05-01), White
patent: 4186591 (1980-02-01), Mooney
patent: 4281534 (1981-08-01), Hansel
patent: 4300388 (1981-11-01), Hansel et al.

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