Resistive heating track with bridge fuse
US6207938A · kind A · utility
6Cited by
5References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1999 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Jan 25, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/82
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical resistance or heater includes an electrical resistive track provided on an insulating substrate. Two predetermined sections of the track have a predetermined current carrying capacity and are bridged by a glass, ceramic, or glass ceramic material. The configuration of the track and the glass material are such that at a predetermined temperature, the leakage current between the track sections rises to the extent that it causes a current to flow through one or both of the sections which is substantially above its current carrying capability, whereby one section fails.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.