Flexible self-limiting heating cable
US4309596A · kind A · utility
31Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1980 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Jun 24, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49083
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A heating cable having spaced helically wound conductor wires separated by a layer of positive temperature coefficient material which functions as a self-limiting heating element. At least one of the conductor wires is helically disposed on a stranded core of insulating fibers which have been coated and impregnated with conductive carbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.