Trough reflector
US4119365A · kind A · utility
31Cited by
3References
20Claims
0Family size
Inventor
Key dates
| Filing date | Apr 30, 1976 |
| Grant date | Oct 10, 1978 |
| Priority date | — |
| Expiry date | Apr 30, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/47
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method for making a large trough reflector of cylindrical shape comprises the step of exerting twisting moments on the opposing longitudinal edges of a flexible reflective sheet. The twisting moments are exerted in equal but opposite increments until the shape of the reflector is governed mainly by the twisting moments, rather than any end loading forces which, acting in the plane of the longitudinal edges of the sheet, would tend to push together or separate the edges of the sheet. Also disclosed is a trough reflector manufactured according to such method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.