Heating method and assembly utilizing electric heating elements in conjunction with combustion
US5235667A · kind A · utility
32Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 1991 |
| Grant date | Aug 10, 1993 |
| Priority date | — |
| Expiry date | May 24, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/62
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heater for radiant heating of an object in a heating tunnel, furnace or the like has a layer of ceramic fibers through which a fuel/air mixture is fed for combustion at the surface and use of the heater as a gas burner. Partly embedded in the surface is an electrical-resistance heater which is heated up by the burner action and then can be energized to provide controlled heating of the object when the gas is shut off. A flow of cooling air through the heater can terminate the heating operation and rapidly quench the heater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.