Removable damper for chemical recovery furnace
US5307745A · kind A · utility
15Cited by
9References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1992 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Sep 23, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23L3/00
- 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 a cantilevered arm 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 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.