Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Dannie Ray Barger0
Mark B. Nelson0
Date of Patent
March 11, 2008
0Patent Application Number
115061410
Date Filed
August 16, 2006
0Patent Primary Examiner
Patent abstract
A system and method of calculating chemical usage during a refilling of a supply tank, which includes the steps of providing a chemical system having a first supply tank of known capacity, wherein the tank is mounted upon an electronic scale. A system controller receives a series of signals from the scale relating to the weight of the tank when empty and at various levels of fill. The first supply tank is filled from a source of chemical feed and the fill time for the filling of the first supply tank is obtained. The system controller inputs the series of signals from the scale relating to the weight of the tank when empty and at various levels of fill and calculates a usage during refilling based on a feed rate times the fill time.
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