Electric heater
US8269150B2 · kind B2 · utility
4Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2008 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Aug 29, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/748
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is the electric heater including a base, and a heating unit having a plurality of unit heating elements disposed on a plate surface of the base and at least one of heating connection portions configured to heat and conductively connecting the unit heating elements to each other and non-heating connection portions configured not to heat and conductively connecting the unit heating elements to each other, thereby preventing a thermal stress concentration, thus to prevent damage to the heating unit and to enhance its output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.