Microwave oven
US6670591B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2002 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Oct 2, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/687
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A microwave oven performs a cooking operation in one of several cooking modes having a first cooking time period and a second cooking time period. The first cooking time period is determined in accordance with an output value of a sensor which senses a state of air in a cooking cavity of the microwave oven. The second cooking time period is determined in accordance with the first cooking time period such that the first and second cooking time periods are expressed by a functional relation. The cooking modes include a standard mode with a standard second cooking time period, a high mode with a longer cooking time than the standard second cooking time period, and a low mode with a shorter cooking time than the standard second cooking time period. The high mode is preset such that a variation in its second cooking time period is increased in proportion to the first cooking time period, while the low mode is preset such that a variation in its second cooking time period is increased in inverse proportion to the first cooking time period. The microwave oven allows a user to set a cooking time period such that the cooking time period is controllably lengthened or shortened in proportion …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.