Air filter and circulation system for a hard disk drive
US5307222A · kind A · utility
29Cited by
2References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1992 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Nov 13, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/1486
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A filter system for a hard disk drive which has a venturi that is actuated by rotation of the magnetic disk and which pumps internal air through a recirculation filter located within the disk drive. The drive unit also has a diffusion tube, desiccant and breather filter coupled to the ambient by a breather port in the housing of the disk drive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.