Removable damper for chemical recovery furnace
US5351631A · kind A · utility
8Cited by
3References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1993 |
| Grant date | Oct 4, 1994 |
| Priority date | — |
| Expiry date | Nov 30, 2013 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23L13/06
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Damper apparatus for air ports of a chemical recovery furnace is mounted on a removable windbox faceplate. Damper blades extend from cantilevered arms pivoted at the forward side of the faceplate, with the damper blades being otherwise unsupported, i.e., they are not confined to travel in tracks within the windbox. Rather, a spring or counterweight urges the damper blades against the air port opening whereby the whole mechanism is free for removal as a unit with the faceplate. Cooperatively operable air port cleaning apparatus is also mounted on the faceplate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.