Process for modulated cryogenic quenching of glass sheets
US5968220A · kind A · utility
2Cited by
16References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1998 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Jul 31, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B27/026
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process and apparatus (26) for quenching a heated glass sheet by directing modulated cryogenic flows (36) that is initially completely liquid (42) toward the oppositely facing surfaces (38) of the glass sheet to quench the glass sheet. The modulated cryogenic flows (36) can be started and fully stopped to provide flow pulses and can also be continuous and have periodic increased flow pulses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.