Pressure sizing of float glass
US4395272A · kind A · utility
6Cited by
12References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1981 |
| Grant date | Jul 26, 1983 |
| Priority date | — |
| Expiry date | Dec 2, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/57
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A continuous ribbon of glass is reduced in thickness while supported on molten metal by imposing super-atmospheric pressure over a molten glass layer in a chamber where the glass is maintained in contact with the side walls of the chamber. One aspect features metering the glass layer into the pressure chamber at substantially full width. Another aspect involves pressure sizing the glass layer at temperatures above 2100.degree. F. (1150.degree. C.).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.