Electrical radiation heater for a glass ceramic plate
US4161648A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1976 |
| Grant date | Jul 17, 1979 |
| Priority date | — |
| Expiry date | Nov 3, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/014
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical radiation heater for a glass ceramic plate, which serves as a cooking plate, comprises an electrical heating strip mounted on an insulating sheet. The heating strip is slit alternately from opposite edges to give it a zig-zag shape and is bent or curved so that it undulates in serpentine fashion. The strip is laid edge-on onto the insulating sheet and anchoring tabs integral with the strip penetrate the insulating sheet. The insulating sheet is laid on an insulating layer which is received in a flat bottomed supporting dish or tray and which is made from a good thermally insulating as well as electrically insulating material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.