Dielectric coated ion transfer device for mass spectrometry
US10546738B1 · kind B1 · utility
0Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2018 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Dec 19, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/24
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ion transfer device includes a tube, a resistive layer on an inside surface of the tube, and a dielectric layer on the resistive layer. The device defines a conduit providing a transfer path for gas and ions. The conduit is surrounded by the dielectric layer. The dielectric layer protects the resistive layer from the chemical environment in the conduit, while being thin enough to allow charges to pass through the dielectric layer and be dissipated by the resistive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.