Diagnostic system for a cooking appliance
US5711606A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 27, 1995 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Oct 27, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/1917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The diagnostic system of the present invention monitors and accumulates the thermal signatures or characteristics during at least one operational mode of the cooking appliance. These thermal signatures or characteristics are collected--through the same temperature sensor used to regulate the temperature of the cooking appliance--and then stored in, for example, a look-up table. Advantageously, this may be accomplished without the need of special sensors or interface boards. The thermal signatures or characteristics may include first order or higher order temperature gradients, as well as temperature profiles. The stored thermal signatures provide a baseline from which the diagnostic system can detect and identify whether the cooking appliance is working under normal operating conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.