Measuring and testing – With fluid pressure – Leakage
Patent
1993-12-27
1995-12-05
Williams, Hezron E.
Measuring and testing
With fluid pressure
Leakage
73 405R, 73290R, G01M 326
Patent
active
054718678
ABSTRACT:
A system for inventory reconciliation and leak detection of particular utility in liquid storage tanks such as the terminal facilities that are used for the storage and distribution of gasoline. The system has the ability to monitor the inventory of several different liquid products on hand at such a facility, account for product deliveries and product dispensations (e.g., to tank trucks which deliver the product from the terminal facility to a gasoline service station), and to continually check the volume of each product dispensed against the inventory on hand so as to provide a real-time system for detecting leaks from the tanks containing each product, losses due to evaporation, volume discrepancies from flow meters which are out of calibration, and other irregularities. The system is non-volumetric in that it operates by measuring the differential pressure in the liquids contained in each storage tank, converting pressure to volume and correlating any change in the volume of inventory of each product to the amount of liquid delivered and/or dispensed, and includes corrections for the effect of temperature on the volume measured by the in-line flow meter, or totalizer, for each product.
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Horner EZY-CHEK.TM. Leak Detector advertising brochure, Horner Creative Metals, Inc., Saginaw, Mich. (date unknown, but known to be prior art).
Liquid Level Measurement, Controls & Alarms product catalog, Uehling Instrument Company, Paterson, N.J. (date unknown).
Statutory Invention Reg. No. H1045, Wilson, published May 5, 1992.
Pp. 5-24 (and two pages of drawings) of technical brochure obtained in May of 1992 from Paroscientific, Inc. (date unknown).
Kauffman Glenn A.
Tuma John E.
Williams Barry N.
Kwok Helen C.
Tanknology Corporation International
Williams Hezron E.
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