Positive temperature coefficient semiconductor heating device
US4037082A · kind A · utility
35Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1976 |
| Grant date | Jul 19, 1977 |
| Priority date | — |
| Expiry date | Apr 30, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An arrangement of components for constructing a heating device employing positive temperature coefficient semiconductor (PTCS) heating elements comprising the PTCS heating element, upper and lower insulating plates, a heat emission plate and a case for entirely covering the layers of the PTCS heating element and the upper and lower insulating plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.