Apparatus and method for controlling thickness of a flowing ribbon of molten glass
US8397536B2 · kind B2 · utility
6Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 2011 |
| Grant date | Mar 19, 2013 |
| Priority date | — |
| Expiry date | May 20, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B17/067
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In the formation of sheet material from molten glass, a cooling tube is positioned in the forming area for directing a flow of cooling gas on discrete portions of the molten glass proximate a draw line or root to control local thickness variations in the sheet and thereby provide a uniform glass sheet thickness across the width of the sheet. The cooling tube is disposed in a pivot member configured to rotate about at least one axis, thereby causing an end of the cooling tube to direct the cooling gas over a wide range of angular positions across a portion of the width of the molten glass flowing over and from a forming body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.