Non-contact magnetic latch for disc drive actuator
US6487052B1 · kind B1 · utility
23Cited by
13References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2000 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Sep 26, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/54
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a non-contact magnetic latch mechanism for holding a disc drive actuator in its park position. The latch includes a magnetically permeable element coupled to the actuator. The magnetically permeable element is positioned so as to be attracted to the magnetic field produced by the actuator voice coil magnets when the actuator is in or near its park position. The size, shape and location of the magnet may be selected so as to vary the latch torque and the range of influence of the latch on the actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.