Electrically operated control device and system for a microwave oven and method of making the same
US4697057A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 17, 1985 |
| Grant date | Sep 29, 1987 |
| Priority date | — |
| Expiry date | Jun 17, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/6452
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrically operated control device and system for a microwave oven and method of making the same are provided, the device comprising a microprocessor for operating the power unit of the oven at various selected levels thereof, and a selector unit electrically interconnected to the microprocessor for selecting the desired power level that the microprocessor is to operate the power unit, the selector unit comprising a rotary switch that is electrically interconnected to the microprocessor in such a manner that the selector unit has a set sequence of the selection levels as the selector unit is rotated in one direction from a beginning position thereof to an ending position thereof, the beginning position being the position where the selector unit was last set for a previously desired power level setting of the microprocessor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.