Elongated parallel, constant wattage heating cable
US4733059A · kind A · utility
17Cited by
15References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1987 |
| Grant date | Mar 22, 1988 |
| Priority date | — |
| Expiry date | Jun 15, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/56
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A parallel, zoned heating cable wherein parallel electrical conductors are spaced outwardly from a central heating element preferably formed of a fibrous material containing carbon or graphite or coated with a conductive polymer. Heat conducting dielectric members are preferably located between the heating element and the electrical conductors for improved thermal distribution of the cable. The conductors are alternately connected by splices to the electrical conductors to produce heat of a constant wattage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.