Disc cartridge
US6781793B2 · kind B2 · utility
1Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2002 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Jul 14, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/0327
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disc cartridge having a case to accommodate a disc, a shutter to open or close an opening formed in the case to enable a recording and/or reproducing job with respect to the disc, a discharge path provided at one side of the case to allow the flow of air formed therein during rotation of the disc, and an opening/closing mechanism to open/close the discharge path. Thus, since the discharge path through which the flow of air produced inside the cartridge during rotation of a disc is smoothly discharged to the outside is provided, contamination of the disc by foreign material such as dust can be considerably reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.