Electrical devices comprising conductive polymers
US4882466A · kind A · utility
363Cited by
10References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 3, 1988 |
| Grant date | Nov 21, 1989 |
| Priority date | — |
| Expiry date | May 3, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical device includes a laiminar resistive element which exhibits PTC behavior and two electrodes which exhibit ZTC behavior. The electrodes have a geometry which results in a resistance that is greater than the resistance of the resistive elements. The electrical device, which may be a heater, can be designed to produce a uniform power distribution over the surface of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.