Shutter shell encapsulating disk medium
US6005755A · kind A · utility
10Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1997 |
| Grant date | Dec 21, 1999 |
| Priority date | — |
| Expiry date | Nov 12, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/0436
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk cartridge has two shell layers. The first layer encases the disk medium. The second layer encases the first layer. Both layers have a head access opening such that rotation of one layer relative to the other layer causes the head access openings to be aligned or misaligned. When the head access openings are misaligned the cartridge is closed. When the head access openings are aligned the cartridge is open.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.