Micro-floppy diskette with inner containment system

Details Micro-floppy diskette with inner containment system Micro-floppy diskette with inner containment system

1984-09-27

1987-03-24

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Record medium

In container

206444, G11B 2504, G11B 2302

Patent

active

046529616

ABSTRACT:
A micro-floppy diskette has an outer relatively rigid jacket with a pair of aligned transducer access apertures; an inner containment cup assembly rotatably received within the jacket, the cup assembly including a pair of flexible cups sealed about the periphery and a pair of flexible annular wiping elements secured to the inner surface of each cup member; and a flexible recording disk rotatably received within the cup assembly. The cup members and wiping elements have mutually aligned cut-out portions which expose the disk recording band through the jacket access apertures when the cup assembly is rotated to an open position. When the cup is rotated to a closed position, the recording disk is shielded from ambient by solid portions of the jacket. One of the cup members has a protruding lug arranged in sliding contact with an inner surface of the jacket to bias the disk to a disk operating plane when the cup assembly is in the open position. An inner surface of the jacket has a detent groove which receives the lug when the cup assembly is in the closed position to provide a positive detent shutter function. An optional tension spring normally biases the cup assembly to the closed position.

REFERENCES:
patent: 4272795 (1981-06-01), Davis, Jr. et al.
patent: 4471397 (1984-09-01), Cloutier

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