Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1991-02-21
1993-02-23
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record medium
In container
G11B 2303
Patent
active
051895862
ABSTRACT:
A disk cartridge including a rotatable disk, a cartridge case for housing the disk, and a U-shaped shutter slidably disposed on the front wall of the cartridge case is disclosed. The cartridge case includes upper and lower walls, and a head access opening formed in both walls between a central axis and the front wall to access the disk. The access opening is opened and closed by the shutter which is biased closed. An indented portion is formed on the walls for receiving the shutter. Two tabs are formed in one shutter arm portion and are received in a slot formed in the cartridge case.
REFERENCES:
patent: 5084862 (1992-01-01), Fujita
Rumpza Paul D.
Wulfing James J.
Griswold Gary L.
Heinz A. J.
Kirn Walter N.
Levine Charles D.
Minnesota Mining and Manufacturing Company
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