Disk cartridge contamination shield
US4112471A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 4, 1976 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Oct 4, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/505
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for housing a rotatable disk used in an information storage apparatus having a disk as the memory storage member. The housing comprises a disk cartridge for holding the disk, the disk cartridge having an aperture which allows the transducer to access the disk, and further comprises a contamination shield interposed in the aperture for smoothing air flow through the aperture. In the absence of the shield, vortices of air form at the aperture which sweep air-borne contaminants into the cartridge and thereby expose the disk to contamination. The shield prevents the vortices from forming, thus eliminating a major cause of disk contamination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.