Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Reexamination Certificate
2007-04-24
2007-04-24
Chen, Tianjie (Department: 2627)
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
Reexamination Certificate
active
10758741
ABSTRACT:
A disc assembly in a disc drive includes a hub rotatable about a central axis. Pluralities of disc elements are mounted about outer periphery of the central axis of the hub. An annular shaped disc clamp is located about a first axial end of the hub, the annular shaped clamp holding the outermost disc to the hub by a series of equally spaced fasteners along an inner diameter of the disc clamp. The improvement therein consisting of placing an offset angle on the underside, or disc-to-hub contact area. The offset angle sloping from the inner disc contact point outward to the end of the clamp such that application of pressure during clamping will make a uniform contact area along the clamp surface as the clamp fasteners are tightened to secure the clamp to the hub. This improves flatness, axial run out, reduces repeatable run out and increases reliability.
REFERENCES:
patent: 5452157 (1995-09-01), Chow et al.
patent: 5517376 (1996-05-01), Green
patent: 5555144 (1996-09-01), Wood et al.
patent: 5615067 (1997-03-01), Jabbari et al.
patent: 5940244 (1999-08-01), Canlas et al.
patent: 5982581 (1999-11-01), Kazmierczak et al.
patent: 6028739 (2000-02-01), Lindrose
patent: 6370100 (2002-04-01), Koshino et al.
patent: 6414817 (2002-07-01), Luo et al.
patent: 6462902 (2002-10-01), Luo et al.
patent: 6462903 (2002-10-01), Yamada et al.
patent: 6483661 (2002-11-01), Martin et al.
patent: 6603636 (2003-08-01), Schwandt et al.
patent: 6785090 (2004-08-01), Koyanagi et al.
patent: 7002774 (2006-02-01), Adams
patent: 2001/0017835 (2001-08-01), Koshino et al.
patent: 2003/0095497 (2003-05-01), Myrtle
Soderfelt Wayne G.
Woods Jim L.
Chen Tianjie
Excelstor Technology, Inc.
Martin Rick
Patent Law Office of Rick Martin, P.C.
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