Force balance needle valve pressure regulator for carbon dioxide based chromatography
US9381447B2 · kind B2 · utility
0Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2013 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Jul 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/328
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Exemplary embodiments of the present disclosure relate to systems and methods comprising a dynamic pressure regulator and a force balance needle that regulate pressure changes due to flow or composition changes in a pressurized flow system, such as, for example, a CO2-based chromatography system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.