Electron tube with axial beam and pyrolitic graphite grid
US6635978B1 · kind B1 · utility
1Cited by
15References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 2000 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Aug 14, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2225/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A grid for an electron tube with an axial beam which includes an apertured part through which the electrons of the beam are intended to pass. The grid is in the form of a bell and is made of a single material. The apertured part is located at the top of the bell but is placed in the bottom of a hollow so that the electrons passing through the grid around its periphery are focused onto the axis. Such a grid may find particular application to IOT-type tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.