Proportional mixing means
US4547128A · kind A · utility
Inventor
Key dates
| Filing date | May 7, 1984 |
| Grant date | Oct 15, 1985 |
| Priority date | — |
| Expiry date | May 7, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86147
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A proportional mixing unit for accurately metering the desired amounts of a liquid concentrate and a liquid diluent, completely mixing the concentrate and diluent together, and holding the mixture until needed. A constant volume pump is used to pump a constant volume of the liquid concentrate. A pressure regulator maintains the liquid diluent at a constant pressure. A variable volume pump is used to mix the liquid concentrate from the constant volume pump and the liquid diluent from the pressure regulator and to pump a variable volume of the mixture to a holding tank. By varying the volume of the variable volume pump, the proportion of liqiuid concentrate to liquid diluent is accurately varied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.