Air bubbler to increase glass production rate
US6334337B1 · kind B1 · utility
17Cited by
20References
40Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 17, 1999 |
| Grant date | Jan 1, 2002 |
| Priority date | — |
| Expiry date | Aug 17, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S588/90
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a glass melter, a precious metal insert is used to protect a gas bubbler from corrosion at the orifice of the bubbler through which gas is injected into the melt. The use of a precious refractory metal insert at the bubbler orifice prevents the attack of molten glass on the bubbler. The precious metal is chosen from the refractory group of metals and the platinum group of metals. Preferably the precious metal from the platinum group is platinum or one of its alloys or one of ruthenium, rhodium, palladium, osmium and iridium. The precious metal from the refractory group is preferably chromium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.