System and method for calculating chemical usage
US7869963B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2008 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Nov 4, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G17/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
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. The scale is capable of generating a series of signals related to the weight of the tank when empty and at various levels of fill. 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.