Liquid storage tank leak detection system

Details Liquid storage tank leak detection system Liquid storage tank leak detection system

1985-12-05

1987-07-14

Tokar, Michael J.

Measuring and testing

With fluid pressure

Leakage

73323, G01F 2302

Patent

active

046794255

ABSTRACT:
The sensing device includes a first vertical tube having a length substantially equal to the diameter of the tank being tested and which is sealed at the bottom and has connected at the top, a smaller diameter second tube adapted to be positioned vertically for measurement of the height or level of liquid within the tube when the sensing device is charged with liquid under conditions of use. Importantly, the diameter, d, of the smaller diameter second tube of the sensor must be such that when the sensor and tank are filled with the same fluid to the same height any change in the heights of the fluid in the sensor and tank resulting from a change in temperature in the tank fluid will be proportional to one another and preferably will be equal. The device of the present invention preferably includes means for determining the height of fluid in the sensor and the tank at any given time.

REFERENCES:
patent: Re31884 (1985-05-01), Hansel et al.
patent: 1598571 (1926-08-01), Fox et al.
patent: 1706336 (1929-03-01), Whitney
patent: 2842089 (1958-07-01), Midkiff
patent: 3538746 (1970-11-01), Jacobs et al.
patent: 3580055 (1971-05-01), White
patent: 3841146 (1974-10-01), Cross et al.
patent: 4386525 (1983-06-01), Mooney
patent: 4571987 (1986-02-01), Horner
John A. Ainlay, Tank Leak Tester, PEI Conference, Las Vegas, 1983.

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