Apparatus for repositioning a transducer in the absence of electrical current to a drive system
US4686595A · kind A · utility
14Cited by
10References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1985 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Oct 17, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5521
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive system includes a mechanism for positioning a movable transducer member in the absence of electrical power to the drive system. The mechanism includes a ferromagnetic lever arm pivotably positioned to engage a movable transducer member and, by such engagement, to move the transducer to a predetermined location. An electromagnet attracts the lever arm to a position clear of the movable transducer member in the presence of electrical power to the drive system, and a spring moves the lever arm into engagement with the movable transducer member when the electromagnet is not energized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.