Electron tube
US9196448B2 · kind B2 · utility
2Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2014 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Mar 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J25/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron tube includes a shell that encloses a helix inside, and a plurality of support rods that support and fix the helix inside the shell, a part of each support rod that is in contact with an inner wall of the shell being covered with a conductive material, another part of each support rod that is in contact with the helix being covered with a dielectric material. The widths of conductive material of one end and another end of each support rod in a longitudinal direction are different, the side surface not being in contact with the shell nor the helix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.