Method and apparatus for bending a sheet of material into a shaped article
US9284212B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2011 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Nov 22, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03B23/0357
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for bending a sheet of material into a shaped article includes providing the sheet of material. A reformable area and a non-reformable area of the sheet of material are heated to a first temperature range corresponding to a first viscosity range. The reformable area of the sheet of material is subsequently heated to a second temperature range corresponding to a second viscosity range. The reformable area of the sheet of material is reformed into a selected shape by at least one of sagging the reformable area of the sheet of material and applying a force to the sheet of material outside of or near a boundary of the reformable area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.