Device for molding information-carrying disks
US4315723A · kind A · utility
10Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1980 |
| Grant date | Feb 16, 1982 |
| Priority date | — |
| Expiry date | Sep 4, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/81
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The device of the invention allows a flexible substrate to be applied against the etched matrix with insertion therebetween of a layer of resin, the application of the substrate on the matrix taking place from the center progressively towards the periphery. It comprises support means in the form of a ring cooperating with a deformable resilient cushion of a convex shape so as to give a curved shape to the substrate at the beginning of molding then to effect the progressive application, while ensuring relative centering of the substrate and the matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.