Device used for the bending of plate glass into convex shapes
US5974836A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1998 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Jun 15, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B23/03
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A device used for the bending of plate glass sections (3) includes an oven (1), a bending chamber (6), an upper bending mold installed in the bending chamber (6) in such a manner as to be able to be raised and lowered, a duct producing a flow of hot gas in order to raise the plate glass sections (3) against the upper bending mold, a lower bending mold in the form of a frame that works together with the upper bending mold to ensure bending by compression of the plate glass that is held by the flow of hot gas against the upper bending mold, as well as a movable transport frame (20) which is used to pick up the bent plate glass from the upper bending mold and to transport it to a cooling station located downstream. The lower bending mold in the shape of a frame is comprised of individual frame segments (9, 10, 11, 12) which can be moved between a closed position defining said lower bending frame and an open position in which the segments are separated from one another by such a distance that the upper bending mold can pass through the space defined within the separated segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.