Pump
US4245963A · kind A · utility
24Cited by
6References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1979 |
| Grant date | Jan 20, 1981 |
| Priority date | — |
| Expiry date | Feb 9, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/326
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pump for precise, smooth delivery of liquid, particularly in liquid chromatography systems, featuring two liquid displacement elements mounted for reciprocating movement in chambers connected in series with two check valves, one displacement element serving to accumulate some of the liquid delivered by the first element and to deliver the accumulated liquid while the first element is refilling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.