Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Reexamination Certificate
2006-10-24
2006-10-24
Renner, Craig A. (Department: 2627)
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
C360S098080
Reexamination Certificate
active
07126787
ABSTRACT:
A disk clamp for securing data storage disks to the hub of a spindle motor in a hard disk drive has a circumferential rib protruding from a lower surface of the disk clamp. A complementary recess is formed in the hub of the spindle motor for closely receiving the rib on the disk clamp. The inner diameter of the rib and the outer diameter of the recess are closely toleranced to provide a very precise centering feature for mounting and aligning the disk clamp with respect to the hub and spindle motor. This design reduces the complexity of the tooling and fixtures required to complete the assembly and the overall part cost is reduced.
REFERENCES:
patent: 5694269 (1997-12-01), Lee
patent: 5822151 (1998-10-01), Albrecht et al.
patent: 6205113 (2001-03-01), Fahey et al.
patent: 6874219 (2005-04-01), Hanssen et al.
patent: 7016147 (2006-03-01), Choo et al.
Chan Andre Sirilutporn
Fu Ta-Chang
Hanlon Andrew Keith
Hanssen Steven Alf
Jefferson Tisha
Bracewell & Giuliani LLP
Hitachi Global Storage Technologies - Netherlands B.V.
Renner Craig A.
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