Flow rate control
US7645388B2 · kind B2 · utility
1Cited by
28References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2004 |
| Grant date | Jan 12, 2010 |
| Priority date | — |
| Expiry date | Jul 18, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/2575
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A liquid sample is prepared at a preparation site and then processed, e.g. in an HPLC column. The sample is prepared and conveyed to the device at a flow rate which is substantially less than the flow rate through the device. The different flow rates are preferably provided by variable rate working fluid supplies which drive the sample from the preparation site and through the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.