Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1991-02-05
1993-05-18
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record medium
In container
G11B 2303
Patent
active
052126145
ABSTRACT:
Relatively thin microdisc cassette cases having a generally rectangular parallelpiped shape and adapted to house therewithin a standardized 3.5-inch flexible magnetic disc, include a pair of opposing planar cassette case halves, and detent members for joining these cassette case halves one to another in face-to-face relationship. The detent members include a number of registered male and female detents which are sized and configured so as to be in an interference friction fit with one another. In such a manner, the cassette case halves are securely joined one to another without necessarily employing conventional ultrasonic welding techniques. However, the cassette case halves may nonetheless be separated upon application of a separatory force of sufficient magnitude. Preferably, the cassette case halves, and hence the male and female detent members, are unitarily molded from a polyacetal resin.
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Dudzik Thaddeus R.
Fletcher Maribeth
Hughes Patrick M.
Heinz A. J.
Hoechst Celanese Corporation
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