Solid state rotary entry control system
US5128661A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1990 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Aug 16, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2019/006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solid state rotary entry control system for controlling appliances such as microwave ovens, dishwashers, washing machines, television sets and other appliances, the control system incorporating a first rotary entry means utilizing the angular displacement of a rotary switch to increment and decrement data, such as desired time, temperature or other data into a microprocessor based appliance control, the control system also incorporating a second rotary entry means for selecting, for example, a desired power level, such as a desired microwave oven magnetron power level, and also providing a power level bar graph display indicative of the power level selected by the user thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.