Magnetic parking device for disk drive
US5170300A · kind A · utility
55Cited by
6References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1991 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | Jan 22, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic parking device for a disk drive includes a magnet and a member for containing the magnetic field produced by the magnet. The magnetic field containing member has an air gap which is substantially parallel to the magnet flux lines of the magnetic field so that there is no fringing of the magnetic field outside of the gap. The device magnetically captures a magnetically permeable capture member provided on the actuator of a disk drive without contacting the capture member and only when the actuator enters the gap in the magnetic field containing member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.