Annular hollow cathode
US11937361B1 · kind B1 · utility
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1References
20Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 9, 2022 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Jun 6, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64G1/413
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cathode emitter assembly includes a cathode tube having a gas feed portion and a plasma outflow portion; an outer annular cathode insert in the plasma outflow portion of the cathode tube; an inner cathode insert in the plasma outflow section of the cathode tube; and an annular plasma emission portion defined between an inner surface of the outer annular cathode insert and an outer surface of the inner cathode insert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.