Plural component controller
US5368059A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 1992 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | Aug 7, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2531
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
This invention is useful in a plural component system which utilizes sequential metering of multiple fluids. In such a system for dispensing component fluids such as paint, the controller dispenses a given amount of a first fluid, and then part way through dispensing of the second fluid, calculates the amount of the second fluid required in view of the actual amount of the first fluid dispensed and then dispenses that amount. The desired tolerance maybe subtracted from the amount of second fluid dispensed so that the overrun which always takes place from the valves on the second fluid will place the mixture in the middle of the range for the dispensed fluid. During subsequent cycles, the ratio is checked in view of the actual amounts dispensed and an alarm set off if the actual ratio falls outside of tolerance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.