Cooking apparatus capable of detecting temperature of food to be cooked
US4734553A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1986 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Dec 16, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/6455
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cooking apparatus determining a temperature of food to be cooked by detecting the changes in the intensity of the infrared rays from the food. The cooking apparatus includes an infrared ray detecting circuit having a detecting element which detects infrared rays from the food. When the actual temperature change in the vicinity of the detecting element is more than a predetermined value, the detecting element is prevented from receiving the infrared rays from the food. The detecting element detects the actual temperature, and the infrared ray detecting circuit outputs the corresponding detection value. The detection value from the infrared ray detecting circuit is stored in a control circuit. The output of the infrared ray detecting circuit is corrected by the stored detection value when the detecting element is exposed to the infrared rays from the food in order to carry out a precise temperature detection for the food.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.