Supercritical ratio control system utilizing a sonic flow venturi and an air-driven positive displacement pump
US5304390A · kind A · utility
16Cited by
9References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1992 |
| Grant date | Apr 19, 1994 |
| Priority date | — |
| Expiry date | Jun 30, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0368
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for delivering a predetermined ratio of a compressible fluid and a non-compressible fluid which comprises the measurement of only the flowrate of the compressible fluid, the activation of an air-driven positive displacement pump at appropriate times, the pumping of a non-compressible fluid with the air-driven pump, mixing the supercritical fluid and non-compressible fluid and depositing the mixture onto a substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.