Glass toughening methods
US3955955A · kind A · utility
3Cited by
3References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 4, 1975 |
| Grant date | May 11, 1976 |
| Priority date | — |
| Expiry date | Feb 4, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B35/164
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A hot glass sheet, which may have been bent to a suitable shape for use in the manufacture of a vehicle window, is heated prior to quenching in a chilling medium such as a chilling liquid, in such a way that the edge of the sheet which first contacts the chilling medium is hotter than the trailing edge of the sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.