Method and apparatus for indicating losses of stored materials

Measuring and testing – With fluid pressure – Leakage

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73290R, 340605, 340618, G01M 332

Patent

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043532454

ABSTRACT:
Improved method and apparatus for indicating losses of stored liquid materials or penetration of liquid in liquid storage tanks, in connection with a liquid meter. The level change is automatically measured by means of a level meter as a function of time intervals, and a level change not caused by removal or filling under normal operation conditions is indicated as a loss of stored material (such as e.g. due to theft or leaks) or as a penetration of liquid (such as e.g. ground water).

REFERENCES:
patent: 3218856 (1965-11-01), Bossard
patent: 3537298 (1970-11-01), Kapff
patent: 3538745 (1970-11-01), Wright et al.
patent: 3538746 (1970-11-01), Jacobs et al.
patent: 3841146 (1974-10-01), Cross et al.
patent: 3939383 (1976-02-01), Alm

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