Ceramic filter and filter device
US6843817B2 · kind B2 · utility
6Cited by
11References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2001 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | May 9, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a ceramic filter to be used at a high temperature, and it contains a substance having preferential reactivity with an ash component contained in materials captured by the ceramic filter and not removed by a high temperature treatment such as combustion over the principal component of the ceramic filter; the reaction between the ash component being not removed by a high temperature treatment such as combustion of the filter and remaining accumulated and the filter component to cause melting of the filter being suppressed to attain a long period of service.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.