Ceramic heater
US4711990A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 1986 |
| Grant date | Dec 8, 1987 |
| Priority date | — |
| Expiry date | Jan 7, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B2203/022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The ceramic heater of the present invention is used for regenerating a fine particle collecting filter which is exposed to exhaust gases at elevated temperatures. In this ceramic heater, which is capable of being cantilevered, two electrode portions are provided on a single straight or curved line and heat generating portion is positioned on one side of said line. The heat generating portion comprises a ring-like portion and two leg portions integrally connected to the ring-like portion at two connecting portions which approximately bisect the ring-like portion. The two electrode portions are provided at fore ends of the leg portions respectively, and the ring-like portion and the two electrode portions conjointly form a triangle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.