Device and method for shaping rods, especially of glassy material
US5683482A · kind A · utility
6Cited by
12References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1996 |
| Grant date | Nov 4, 1997 |
| Priority date | — |
| Expiry date | Apr 10, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B17/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device for shaping rods, in particular, of a glassy material, by casting said material in a molten state in a mold, characterized by the fact that said mold comprises a) a cylindrical internal wall of a porous material and b) a means to inject a gas in this wall and cause it to come out of the wall on the side facing the glassy material accumulated in the mold, so as to constitute an interstitial flow of a film of gas that separates the glassy material from the inside wall of the mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.