Electron tube with cylindrical grid of pyrolytic graphite
US4387320A · kind A · utility
4Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 1981 |
| Grant date | Jun 7, 1983 |
| Priority date | — |
| Expiry date | Apr 6, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J19/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an electron tube having coaxial cylindrical electrodes and at least one cylindrical grid of pyrolytic graphite, the grid is joined to the upper portion of a central conducting mast by means of a bell which is also of pyrolytic graphite and fixed on the mast. Slits are cut at uniform intervals around the periphery of the bell in order to form resilient strips which serve to establish an electrical contact between the grid and the conducting mast.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.