Flat glass annealing lehrs
US6772610B1 · kind B1 · utility
36Cited by
16References
8Claims
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Key dates
| Filing date | Feb 19, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Sep 12, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B25/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Flat glass annealing lehr equipped with controlled heating and cooling means, includes pre-annealing, annealing, and post-annealing zones with heat exchange by radiation, the said zones being equipped respectively with groups of cooling-air heat exchangers situated above and/or beneath the glass ribbon. A single cooling-air intake manifold is included for groups of exchangers in the pre-annealing and annealing zones, which manifold is situated where the zones meet. A single cooling-air intake manifold for second groups of exchanges in the annealing and post-annealing zones, which manifold is situated where said zones meet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.