Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1982-04-19
1984-07-10
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record medium
In container
360 97, 346137, G11B 2302, G11B 512
Patent
active
044596286
ABSTRACT:
A disk cartridge having a housing in which a substantially rigid disk is completely enclosed, the disk having a nub which is accessible through an opening in the housing for engagement by a rotatable drive spindle. The housing has an opening for receiving a read/write head to apply or pick off data from the magnetically permeable surface of the disk. The head receiving opening is normally closed by a door which is opened by a cam when the cartridge is inserted in a drive unit. When not in use, the disk hub is held against the interior of the hub opening to seal the cartridge against contamination. When the cartridge is inserted in a drive unit, the drive spindle is guided into a self-centering socket in the hub and lifts the hub clear of the opening for free rotation of the disk.
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Cipher Data Products, Inc.
Wolff John H.
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