Safety device for a heating appliance
US4517431A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 5, 1983 |
| Grant date | May 14, 1985 |
| Priority date | — |
| Expiry date | Jan 5, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B40/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A safety means for heating appliances having a digital control section, such as electric ovens, microwave ovens, and composite ovens which combine the two preceding types, is arranged such that the completion of the setting of a timer or the like is determined by the passage of a given time period and the completion of the preparation for preheating is reported, while the sequence is advanced to make the start of heating possible. Furthermore, the placement of an object to be heated (11) in a heating chamber (11) is determined by detecting the opening and closing movement of a door, and a standby report is made to make the start of heating possible. In addition, in a heating appliance which requires preheating, the preheating completion time is estimated and reported so as to facilitate the preheating operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.