Recording disc cartridge having an improved hub assembly
US4695910A · kind A · utility
21Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1984 |
| Grant date | Sep 22, 1987 |
| Priority date | — |
| Expiry date | Jul 31, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/0332
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a recording disc cartridge having a recording disc rotatably supported by a hub assembly in a disc case, the hub assembly is formed by a hub body and a reinforcing metal plate laid on one of the surfaces of the hub body so as to prevent thermal deformation of the recording disc due to deformation of the hub body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.