Disc cassette with slidable cover

Details Disc cassette with slidable cover Disc cassette with slidable cover

1984-10-29

1987-04-21

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record medium

In container

369291, 206444, G11B 2302

Patent

active

046601180

ABSTRACT:
A disc cassette comprising an information disc has a slot 10 for the passage of a recording and/or reproducing head and a central opening 9 for the passage of a drive spindle. On the outside it carries a closing cover which is movable towards an operational position and which has a slot 12 which aligns with the slot 10 in the envelope in the operational position of the closing cover. The closing cover 11 extends further than the central opening 9 in the major wall to cover this opening in the closing position of the closing cover and has a further opening 13 which overlaps the central opening in the envelope of the disc cassette in said operational position to allow the passage of drive spindle of a drive apparatus. Preferably the closing cover and the envelope cooperate with each other near the central opening to retain the closing cover against undesired displacements away from the enclosure.

REFERENCES:
patent: 4510546 (1985-04-01), Asami et al.
Hatchett, "Dual-Use Data Cartridge", IBM Technical Disclosure Bulletin, vol. 23, No. 4, Sep. 1980, pp. 1652-1653.
Godsoe et al., "Flexible Disk Data Cartidge", IBM Technical Disclosure Bulletin, vol. 21, No. 8, Jan. 1979, p. 3079.

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