Tool for forming precisely curved surfaces
US4413500A · kind A · utility
3Cited by
15References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1982 |
| Grant date | Nov 8, 1983 |
| Priority date | — |
| Expiry date | Sep 13, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D53/883
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Precisely curved, lightweight and low-cost reflectors for electromagnetic radiation are fabricated by use of a tool and a process in which a blank is planar stretched by uniformly applied isotropic and radially extending forces followed by deformation of the stretched blank to a precisely curved surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.