Leak detection method and apparatus

Details Leak detection method and apparatus Leak detection method and apparatus

1986-10-14

1987-12-01

Levy, Stewart J.

Measuring and testing

With fluid pressure

Leakage

73 407, G01M 304

Patent

active

047095768

ABSTRACT:
Apparatus for determining if an underground storage tank is leaking provides simple determination by a layman. A housing containing a detection tube is lowered into a well in the vicinity of the tank, and a vacuum pump pulls air through the detection tube. The sampled air will disclose the presence, or not, of vapor from the suspected tank. The method includes the use of discrete sample of air, and the quantity of air is determined by use of a detection tube sensitive to carbon dioxide. An indication of a quantity of carbon dioxide can be related to a volume of air through known relationships. Preferably, the housing containing the detection tube is carried by a float so the intake is just above the surface of any water in the well.

REFERENCES:
patent: 3106089 (1963-10-01), Scott et al.
patent: 3459036 (1969-08-01), Powell

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