Disc cartridge

Details Disc cartridge Disc cartridge

2005-06-21

2005-06-21

Klimowicz, William J. (Department: 2652)

Dynamic optical information storage or retrieval

Optical storage medium structure

Disk cartridge

C720S725000

Reexamination Certificate

active

06910219

ABSTRACT:
A disc cartridge includes: a cartridge body including a disc storage portion storing a disc, having first and second sides, therein so that the disc is rotatable there and that the first side is exposed and chucking and head opening formed on the bottom of the storage portion so as to get the disc chucked externally and allow a read/write head to access the second side, respectively; a shutter supported, and movable with respect to the cartridge body, between the second side of the disc and the bottom of the disc storage portion so as to expose or cover the chucking and head openings and defining a hole under a center hole of the disc while the shutter is closed; and a disc holder provided for the shutter and pressing the disc against the shutter and holding it thereon while the chucking and head openings are covered with the shutter.

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