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

1978-11-27

1980-02-05

Goldberg, Gerald

Measuring and testing

With fluid pressure

Leakage

73292, G01M 332

Patent

active

041865910

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. A buoyant member is floated on the surface of the liquid in the fill-pipe. The height of the buoyant members and the temperature of the liquid within the tank are monitored over a period of time. Any fall of the buoyant member that is not proportional to any change of temperature of the liquid within the tank indicates a leak in the tank.

REFERENCES:
patent: 1417892 (1922-05-01), Ehrentraut
patent: 1777415 (1930-10-01), Morgan
patent: 2677276 (1954-05-01), Schmidt
patent: 2902859 (1959-09-01), Quist
patent: 3359799 (1967-12-01), Lubin
patent: 3580055 (1971-05-01), White
patent: 3841146 (1974-10-01), Cross et al.

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