Removable disk pack hub and clamp for media servowriter

Details Removable disk pack hub and clamp for media servowriter Removable disk pack hub and clamp for media servowriter

2008-07-01

2008-07-01

Heinz, A. J. (Department: 2627)

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

Reexamination Certificate

active

07394617

ABSTRACT:
The present invention provides a hub/clamp assembly for holding a disk hub in position when the hub is spin in a high speed. The hub/clamp assembly comprises of: a removable disk hub having a shaft for stacking a plurality of storage disks, a flange portion integrally attached to one end of the shaft, and an extension shaft integrally attached to the flange portion opposite to the shaft; wherein the axes of the shaft, the flange portion, and the extension shaft are in alignment; and a hub clamp housing having a housing with side walls and top and bottom surfaces, and a clamp means disposed within the cavity formed within the housing. The present invention also provides a multi-disk servowriter for writing servo information onto multiple storage disks at the same time. The multi-disk servowriter comprises a base with an air spindle shaft providing the spinning power for the servowriter; a removable disk hub having a shaft for stacking a plurality of storage disks, a flange portion integrally attached to one end of the shaft, and an extension shaft integrally attached to the flange portion opposite to the shaft; wherein the axes of the shaft, the flange portion, and the extension shaft are in alignment; and a hub clamp housing having a housing with side walls and top and bottom surfaces, and a clamp means disposed within the cavity formed within the housing.

REFERENCES:
patent: 5031061 (1991-07-01), Hatch
patent: 5331488 (1994-07-01), McAllister et al.
patent: 5644564 (1997-07-01), Peters
patent: 5731927 (1998-03-01), Kaneko
patent: 6005747 (1999-12-01), Gilovich
patent: 6704272 (2004-03-01), Hagiwara
patent: 6954330 (2005-10-01), Yeom
patent: 2005/0157421 (2005-07-01), Yeom et al.

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