Ashing furnace and method
US5943969A · kind A · utility
21Cited by
78References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 29, 1998 |
| Grant date | Aug 31, 1999 |
| Priority date | — |
| Expiry date | May 29, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23J2217/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A furnace comprises an enclosure, a hearth plate within the enclosure for supporting combustible material, a first heater element adjacent the hearth plate for initial combustion of the combustible material, a filter disposed above the hearth plate for filtering uncombusted products of combustion of the combustible material, and a second heater element adjacent the filter for final combustion of the uncombusted products of combustion filtered by the filter. A controller controls the first and second heater elements independently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.