Pressurized liquid delivery apparatus
US5993654A · kind A · utility
18Cited by
12References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1998 |
| Grant date | Nov 30, 1999 |
| Priority date | — |
| Expiry date | Sep 24, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/326
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
First liquid pumping apparatus for containing a first quantity of first liquid, second liquid pumping apparatus for containing a second quantity of second liquid and control apparatus for alternately connecting the first liquid pumping apparatus and second liquid pumping apparatus to pressurized liquid utilization apparatus and for causing the first and second liquid pumping apparatus to alternately deliver the respective liquids to the liquid utilization apparatus at a substantially constant flow or substantially constant pressure; the first and second liquids may be the same liquid or different liquids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.