Disc cartridge with opening for exposing disc extending to thin

Details Disc cartridge with opening for exposing disc extending to thin Disc cartridge with opening for exposing disc extending to thin

1990-02-02

1991-09-03

Severin, David J.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 23033

Patent

active

050459597

ABSTRACT:
A disc cartridge is comprised of a cartridge body accommodating a disc-shaped record medium being formed of a pair of cartridge halves, each of which has an opening extending from a central portion of at least one of the pair of cartridge halves to a peripheral wall thereof to expose one portion of the disc-shaped record medium rotatably accommodated therein to the exterior of the cartridge body, a portion of the peripheral wall to which the opening extends being thinner than the remainder of such peripheral wall. A reinforcing member of a material having a mechanical strength higher than that of the pair of cartridge halves reinforces the thinner portion of the peripheral wall to which the opening extends.

REFERENCES:
patent: 4802046 (1989-01-01), Tanaka et al.
patent: 4839766 (1989-06-01), Kato
patent: 4858050 (1989-08-01), Ashe et al.
patent: 4918559 (1990-04-01), Maruyama et al.

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