Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Reexamination Certificate
2007-08-14
2007-08-14
Evans, Jefferson (Department: 2627)
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
Reexamination Certificate
active
10916913
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.
REFERENCES:
patent: 4945432 (1990-07-01), Matsudaira et al.
patent: 6040957 (2000-03-01), Konings
patent: 2001/0022703 (2001-09-01), McCutcheon et al.
Piezoelectric Ceramic Sensors (PIEZOTITE®), Jun. 2001, 44 pages, Cat.No. P19E-7, Murata Manufacturing Co., Ltd., Japan.
Chang Joseph
Chen Shiao-Hua
Morris Frank
Evans Jefferson
GSS Law Group
Jennings Earle
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