Dynamic magnetic information storage or retrieval – Head mounting – For shifting head between tracks
Reexamination Certificate
2007-08-28
2007-08-28
Young, Wayne (Department: 2627)
Dynamic magnetic information storage or retrieval
Head mounting
For shifting head between tracks
C360S264300, C360S264700, C360S264900, C360S265000
Reexamination Certificate
active
10903203
ABSTRACT:
A top pole piece of a voice coil motor (VCM) is attached to a hard disk drive cover without screw fasteners and with minimal loss of VCM magnetic flux capacity. A pair of leaf springs are supported at both ends, rather than by cantilever, to more uniformly distribute mechanical stress throughout the springs so that less space is required to achieve the same transverse load as a cantilevered spring of the same profile. The smaller space envelope required by this design minimizes the loss of magnetic flux capacity of the VCM. Each leaf spring has two integral legs, central portions of which are rigidly fastened to the drive cover. The end of each leg opposite the central portion applies a force against the cover in the assembled disk drive.
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Hatchett Michael Robert
Stacer Daniel Robert
Bracewell & Giuliani LLP
Hitachi Global Storage Technologies Netherlands BV
Kayrish Matthew G.
Young Wayne
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