Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1987-02-10
1989-03-07
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record medium
In container
360 9906, G11B 2302, G11B 05012
Patent
active
048111511
ABSTRACT:
A recording disc cartridge comprising a disc case formed by a top half and a bottom half each having a spindle hole and a head insertion hole, a recording medium rotatably enclosed in the disc case, shutter means for closing and opening the spindle holes and the head insertion holes, a slide means for moving the shutter means in both lateral directions relative to a line which passes through each center of the spindle hole and the head insertion hole and means for resiliently exerting the slide means so as to drive the shutter means for closing the spindle holes and the head insertion holes.
REFERENCES:
patent: 4622607 (1986-11-01), Smith
Abe Shinichi
Fujimoto Nobuyuki
Kanazawa Yasunori
Kuwa Tadahiro
Nakamori Yoshiyuki
Hitachi , Ltd.
Hitachi Maxell Ltd.
Wolff John H.
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