Method and apparatus for producing curved glass sheets
US5125947A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1991 |
| Grant date | Jun 30, 1992 |
| Priority date | — |
| Expiry date | Jan 18, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B23/023
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for curving a glass sheet is described in which a glass sheet is held by forces of a pneumatic nature against an upper element of dimensions smaller than those of the glass sheet. According to the invention, the parts of the glass sheet projecting beyond the upper element are held against a flexible material, the dimensions of which are greater than those of the glass sheet. The flexible material is interposed between the glass sheet and the upper element, and is secured so that portions of the flexible material which extend beyond the upper element are held in directions tangential to the surface of the upper element in its marginal zones. The invention is applicable, notably, to the production of automobile panes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.