Information carrier disk housing having incorrect insertion prev

Details Information carrier disk housing having incorrect insertion prev Information carrier disk housing having incorrect insertion prev

1989-09-26

1991-09-03

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record medium

In container

360 9902, G11B 2303, G11B 5016

Patent

active

050461702

ABSTRACT:
A magnetic disk cassette that has a slidable shutter with a first notch, the shutter being open by engaging a swingable shutter opener with the first notch while the magnetic disk cassette is being inserted into a cassette holder, wherein single or plural second notches are provided at a portion of the cassette that is symmetrical to the position of the first notch with respect to the rotation center of a magnetic disk that is housed in the cassette, whereby when the cassette is inserted into the cassette holder up side down, the shutter opener engages with the second notch(es) to prevent the cassette from being inserted to the innermost of the cassette holder.

REFERENCES:
patent: 4546397 (1985-10-01), Asami et al.
patent: 4646193 (1987-02-01), Gitzendanner
patent: 4688206 (1987-08-01), Nakagawa et al.
patent: 4740949 (1988-04-01), Davis

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