Magnetic disc drive having magnetic particle trap for hydrodynamic bearing
US5956204A · kind A · utility
24Cited by
39References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1995 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Feb 13, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2370/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic disc drive system includes a hydrodynamic bearing. The magnetic disc drive system includes a disc drive chassis, a magnetic storage disc, and a read/write transducer adjacent to the disc for reading and writing information on the disc. The hydrodynamic bearing assembly rotatably couples the magnetic storage disc to the disc drive chassis. The hydrodynamic bearing assembly includes a fluid path therethrough for circulating a fluid. A permanent magnet is placed in the fluid path and used for attracting magnetic particles carried in the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.