Use of reducing gas curtain for start of glass forming process
US4081262A · kind A · utility
2Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 3, 1977 |
| Grant date | Mar 28, 1978 |
| Priority date | — |
| Expiry date | Aug 3, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B18/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A curtain of reducing gas is established across the entrance end of a glass forming chamber which employs a pool of molten metal to support glass during forming in order to impinge reducing gas along a line across a refractory delivery piece and molten metal region of the forming chamber in order to insure that molten glass is initially delivered onto molten tin free of contaminants, such as metal oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.