Digital control for a cooking time and power of an electric cooking device
US4250370A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1978 |
| Grant date | Feb 10, 1981 |
| Priority date | — |
| Expiry date | Aug 23, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B19/102
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A control device adapted to control cooking time and power of an electric cooking device. By depressing entry keys on a control panel a desired cooking time data and power level setting data are entered in first and second shift registers respectively. Next when a cooking start key is depressed the electric cooking device starts its operation at a power corresponding to the power level setting data and the down count operation of the time data in the first shift register is started. When the time data in the first shift register becomes zero due to the down count operation the cooking device stops its operation. The data in the first and second shift registers are displayed by digital indicators. The time data in the first shift register is detected whether or not it has an erroneous digit or digits and any detected erroneous digit or digits are blanked or flashed on the digital indicators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.