Outwardly tensioned magnetic disc cartridge

Details Outwardly tensioned magnetic disc cartridge Outwardly tensioned magnetic disc cartridge

1986-06-30

1988-07-26

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Record medium

In container

369291, G11B 2303

Patent

active

047604824

ABSTRACT:
A disc cartridge made of two molded plastic shells, joined together. Each of the shells have portions of differing molding shrinkage. In an annular embodiment, the outer annulus has the smaller molding shrinkage. In a planar embodiment, the exterior layer has the smaller molding shrinkage. The differing contractions causes the shells to bend outward, away from the enclosed disc.

REFERENCES:
patent: 4428014 (1984-01-01), Saito
patent: 4499996 (1985-02-01), Coyle
patent: 4544977 (1985-10-01), Ozawa et al.

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