Electrical heater with thermistor
US6455823B1 · kind B1 · utility
31Cited by
25References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2000 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Oct 6, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/029
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical heater having a plurality electrodes disposed adjacently on a substrate in spaced apart relation and interconnected by a thermistor material, for example a positive temperature coefficient material. The electrodes each have at least one end portion and preferably two opposite end portions coupled to corresponding electrical terminal located at a common termination zone on the substrate. A spacing between adjacent electrodes may vary and adjacent electrodes may include interdigitated portions to vary the heat produced on select portions of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.