Method and apparatus for bending a laminated panel
US4262514A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1979 |
| Grant date | Apr 21, 1981 |
| Priority date | — |
| Expiry date | Oct 22, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C53/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Apparatus for bending a laminated panel about at least one intended bend line extending parallel with the bottom of a notch formed in the backing of the panel. The panel is retained in engagement with a forming edge which extends along and is at least coextensive with the bend line. The panel and the forming edge are supported spaced-apart from a base. A substantially air-impervious membrane covers the panel and cooperates with the base to provide a substantially closed chamber. Means is provided establishing a pressure within the chamber which is less than the pressure outside of the chamber, whereby the pressure outside of the chamber forces the panel to bend about the forming edge thereby to place the panel portions on opposite sides of the bend line in angular relation relative to each other. A method for bending laminated panels is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.