Device for detecting leakage of liquid in tank

Details Device for detecting leakage of liquid in tank Device for detecting leakage of liquid in tank

2005-07-26

2005-07-26

Williams, Hezron (Department: 2856)

Measuring and testing

With fluid pressure

Leakage

Reexamination Certificate

active

06920778

ABSTRACT:
A device placed in a tank and used for detecting a leakage of liquid in the tank. Vertical measurement tube passages (10, 14) into which the liquid in the tank is introduced have a measurement tube (10) and a measurement thin tube (14). The measurement thin tube (14) communicates with the measurement tube and is located lower than the measurement tube. The measurement thin tube has a cross-sectional area that is equal to or smaller than {fraction (1/50)} of that of the measurement tube. A thermal flow sensor (16) used for measuring a liquid flow rate is attached to the measurement thin tube (14). There is provided leakage detecting means (22) for detecting a leakage of liquid in the tank according to the flow rate value measured by the sensor. The leakage detecting means generates a leakage detection signal when a flow rate value measured by the sensor is within a range greater than 0 and smaller than the flow rate value obtained when liquid is added to the tank or when the liquid in the tank is taken out. Thus, even a leakage of a very small amount is detected easily and accurately without stopping the use of the tank.

REFERENCES:
patent: 3331245 (1967-07-01), Barker
patent: 3650151 (1972-03-01), Drexel
patent: 4791814 (1988-12-01), Nee
patent: 4862734 (1989-09-01), Elderton
patent: 4893498 (1990-01-01), Jensen
patent: 4964296 (1990-10-01), Jensen
patent: 4967592 (1990-11-01), Lagergren et al.
patent: 5086644 (1992-02-01), Schendel
patent: 5088317 (1992-02-01), Jensen
patent: 5131264 (1992-07-01), Jensen
patent: 5189904 (1993-03-01), Maresca et al.
patent: 5254976 (1993-10-01), Schueler
patent: 5284048 (1994-02-01), Horner
patent: 5375455 (1994-12-01), Maresca et al.
patent: 5445010 (1995-08-01), Peacock
patent: 5767393 (1998-06-01), Robertson
patent: 5861547 (1999-01-01), Kawai et al.
patent: 62-223640 (1962-10-01), None
patent: 58168935 (1983-10-01), None
patent: 60-95539 (1985-06-01), None
patent: 4-236900 (1992-08-01), None
patent: 11-118566 (1994-11-01), None
patent: 8-327491 (1996-12-01), None
patent: 10-120099 (1998-05-01), None
patent: 2001-235356 (2001-08-01), None

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