Magnetron
US5172030A · kind A · utility
0Cited by
7References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 1989 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Jan 12, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J23/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetron includes a cathode assembly which comprises a helically wound wire supported by a ceramic cylindrical member. Emissive material is located between adjacent turns of the conductor and connection is provided to the conductor via a rod and tube. When current is passed through the conductor (2), the emissive material (4) is directly heated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.