Magnetron
US8129911B2 · kind B2 · utility
3Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2009 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Aug 9, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J25/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A magnetron has an anode 3 surrounding a tubular hollow cathode 4 which contains a heater 9. The cathode is supported by radial arms at each end. At one end of the cathode, the heater is supplied with one terminal of its D.C. supply by means of a radial arm 5, which also serves to support that end of the cathode. The arm has a portion 5a offset towards the cathode, and a cover of conducting material is interposed between the heater connection and the adjacent end wall 1 of the vacuum envelope. The cover may have a folded portion so that it can be carried by the arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.