Microwave oven warning device
US4692580A · kind A · utility
5Cited by
10References
1Claims
0Family size
Inventor
Key dates
| Filing date | Apr 14, 1986 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Apr 14, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S99/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Microwave cooking has become very popular and microwave cooking ovens are being sold in large numbers. The manufacturers of microwave ovens warn purchasers not to operate the microwave oven when the oven is empty. Operating the oven empty can result in damage to the magnetron tube and start a fire. The device of this invention is placed in the microwave oven while the oven is not in use and if the oven is accidentally turned on, the warning device will sound an alarm and warn the operator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.