Cathode heater assembly and method of manufacture
US12119201B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2023 |
| Grant date | Oct 15, 2024 |
| Priority date | — |
| Expiry date | Sep 15, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J9/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode heater assembly for use in a vacuum electronic device includes a refractive cup having a bottom portion and side walls forming a container; a cathode secured in the container of the refractive cup; and a heater wire coupled to the refractive cup. The cathode heater assembly may be manufactured by providing a refractive cup having a bottom portion and side walls forming a container; inserting a cathode pellet in the container of the refractive cup; impregnating the cathode pellet with electron emissive materials while the cathode pellet is in the container of the refractive cup; and attaching a heater wire to the refractive cup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.