Magnetron mode detector
US4504767A · kind A · utility
5Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1982 |
| Grant date | Mar 12, 1985 |
| Priority date | — |
| Expiry date | Sep 7, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/666
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A mode detector for microwave oven magnetrons is disclosed including means for sensing interruption of anode current and providing a discrete indication thereof. An alternative embodiment discloses means to count the number of such interruptions. A method of detecting incipient failure of the magnetron is disclosed wherein the discrete output of a mode detector is observed and a determination is made that an incipient failure exists when the mode detector output frequency exceeds a predetermined limit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.