Electric heating device
US9137858B2 · kind B2 · utility
0Cited by
11References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2007 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Mar 4, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electric heating device with a radiant tube and an electrical heating element arranged in the radiant tube as well as a protective insert of electrically conductive material. The protective insert is arranged between the radiant tube and the electrical heating element. The device allows the use of higher element power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.