Disk locking mechanism for disk cartridge
US4943880A · kind A · utility
32Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1988 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Nov 14, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/0308
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk cartridge for a rotatable recording disk includes a slidable shutter for providing access to the recording disk through the disk cartridge. A unique mounting for a return spring for the shutter allows the return spring to be of a maximum length which allows increased control of the forces generated by the return spring. The disk cartridge is further provided with a locking mechanism for preventing movement of the recording disk within the disk cartridge during storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.