Charging sluice for annealing oven
US4681536A · kind A · utility
5Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1985 |
| Grant date | Jul 21, 1987 |
| Priority date | — |
| Expiry date | Aug 14, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27B9/28
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A sluice for feeding a continually transported material to be annealed into an annealing oven includes two opposing sealing hollow plates spaced from each other to permit the material to pass therebetween and each provided with a coating of ceramic felt. A conduit for feeding buffer gas into the space between two opposing plates opens into that space to fill that space with buffer gas and to prevent oxygen from entering the oven.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.