Active dampening gradient proportioning valve
US11821880B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2020 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Dec 27, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/347
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a gradient proportioning valve for use in liquid chromatography that includes a plurality of inlet ports configured to receive a plurality of fluids, a manifold connected to each of the plurality of inlet ports configured to mix the plurality of fluids in a controlled manner to provide a fluid composition, the manifold including a plurality of conduits internal to the manifold, each of the plurality of conduits receiving fluid through a respective one of the plurality of inlet ports, each of the plurality of conduits operatively communicable to a respective actuation mechanism configured to open and close each of the plurality of conduits in a controlled manner, a common outlet port configured to receive the fluid composition, and an active fluidic dampening system configured to dampen unwanted fluidic pressure pulses in the manifold. Liquid chromatography systems and methods are further disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.