Magnetic tape cassette including erasure prevention means, and c

Details Magnetic tape cassette including erasure prevention means, and c Magnetic tape cassette including erasure prevention means, and c

1983-11-21

1986-08-19

Cardillo, Raymond F.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Recording-or erasing-prevention

360 965, 360132, G11B 1504, G11B 1904, G11B 2302

Patent

active

046072993

ABSTRACT:
A magnetic tape cassette system includes an erroneous erasing preventing member which is controlled by an operating device on a cassette deck to prevent erroneous erasing of a tape cassette. The erroneous erasing preventing member includes a space with an opening provided on a peripheral wall of a tape cassette, and an opening and closing member which in a first position prevents erasing of the tape cassette and in a second position closes the opening to the space, thereby allowing the tape cassette to be erased.

REFERENCES:
patent: 3950786 (1976-04-01), Shapley
patent: 3957225 (1976-05-01), Vogel
patent: 4012011 (1975-10-01), Saito
patent: 4041537 (1977-08-01), Kishi

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