Glass-forming tools and methods
US9586849B2 · kind B2 · utility
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16References
5Claims
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Key dates
| Filing date | Nov 5, 2014 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Nov 5, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Refractory glass-forming tools, including glass-forming molds incorporating protective metal nitride surface coatings, with optional alumina barrier layers disposed between the mold bodies and coating for high-temperature nitride coating stability, offering particular advantages for the manufacture by direct molding of optically finished glass products such as information display cover glasses from refractory alkali aluminosilicate glasses at molding temperatures up to and above 800° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.