Electrical device
US4880962A · kind A · utility
8Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1988 |
| Grant date | Nov 14, 1989 |
| Priority date | — |
| Expiry date | Feb 24, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S174/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical heater suitable for heating a hot-melt adhesive to seal a cable splice case. The heater is in strip form and comprises a conductive polymer between two electrodes. The conductive polymer has a positive temperature coefficient of resistance and is thereby self-regulating. Current in-rush when the heater is cold is reduced by initially having only a portion of the heater connected to the power source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.