Method of shaping sheet glass
US6668589B1 · kind B1 · utility
12Cited by
10References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 1997 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | May 19, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B23/0357
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A suction mold has a central suction chamber having a flat shaping surface area and a pair of opposite side suction chambers disposed one on each side of the central suction chamber and having respective curved shaping surface areas. First, a vacuum is developed in the central suction chamber to attract a central area of the sheet of glass against the flat shaping surface area thereof, and then a vacuum is developed in the opposite side suction chambers to attract opposite side areas of the sheet of glass respectively against the curved shaping surface areas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.