Damped spindle motor flange for the disk pack in a hard disk drive
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United States of America Patent
Stats
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Aug 14, 2007
Grant Date -
Feb 16, 2006
app pub date -
Aug 11, 2004
filing date -
Aug 11, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention includes a spindle motor with a dampened spindle motor flange, which includes a shallow groove on the disk face. The shallow groove includes a first rim, a trough, and a second rim. In use, the trough fills with a visco-elastic material compressed by a metallic ring. A disk pack assembly uses the spindle motor coupling through the dampened spindle motor flange to at least one clamped disk. The invention includes a disk pack using the spindle motor, visco-elastic material, and metallic ring, as well as hard disk drives built with these disk packs. The invention includes the method of disk pack assembly, as well as making a hard disk drive using disk pack. The manufactured disk pack and the hard disk drive are products of the invention's processes.
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