Process and apparatus for blending fluids to maintain concentration of one below a predetermined maximum
US4183384A · kind A · utility
6Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1978 |
| Grant date | Jan 15, 1980 |
| Priority date | — |
| Expiry date | Jan 18, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2514
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A safety apparatus for use in fluid blending and dispensing devices wherein it is essential to insure that one of the fluids to be blended be maintained below a defined maximum concentration. The apparatus comprises a single valve located in the inlet line of the fluid to be controlled, which is operable upon detection of an increase in the flow rate of the fluid to be controlled or by a decrease in the flow rate of any of the other fluids with which it is being blended.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.