Electric resistance heating element and electric resistance heating furnace using the same as heat source
US4490828A · kind A · utility
25Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1982 |
| Grant date | Dec 25, 1984 |
| Priority date | — |
| Expiry date | Dec 20, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved electric resistance heating element made of a carbon material, provided around its surface with a layer essentially comprising carbon fiber, and an improved electric resistance heating furnace using the heating element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.