Fusion draw apparatus and methods
US9643875B2 · kind B2 · utility
1Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2012 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Sep 17, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B33/0215
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A fusion draw apparatus includes a pair of engagement rollers. At least one of the pair of engagement rollers includes a circumferential knife edge configured to cooperate with the other of the pair of engagement rollers to thin the edge portion or sever the edge portion from a central portion of the glass ribbon within the viscous zone of the glass ribbon. In further examples, fusion draw methods include the step of thinning the edge portion or severing the edge portion from the central portion of the glass ribbon within the viscous zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.