Plurality of non-magnetic dampers on a voice coil yoke arm

Details Plurality of non-magnetic dampers on a voice coil yoke arm Plurality of non-magnetic dampers on a voice coil yoke arm

2011-08-02

2011-08-02

Davis, David D (Department: 2627)

Dynamic magnetic information storage or retrieval

Head mounting

For shifting head between tracks

Reexamination Certificate

active

07990657

ABSTRACT:
A plurality of non-magnetic dampers on a voice coil yoke arm for reducing low frequency vibration in a hard disk drive is disclosed. One embodiment provides housing and at least one disk coupled with the housing. In addition, an actuator is coupled to the housing, the actuator having a coil region with a voice coil and a plurality of voice coil yoke arms. At least one of a plurality of non-magnetic dampers is also coupled with each of the plurality of voice coil yoke arms and not with the voice coil. In so doing, the plurality of non-magnetic dampers are able to damp low frequency actuator coil torsion and coil bending resonances.

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