Tape cassette with erase inhibit plug

Details Tape cassette with erase inhibit plug Tape cassette with erase inhibit plug

1976-04-22

1977-08-23

Lucas, Jay P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Recording-or erasing-prevention

360132, G11B 1504, G11B 2306

Patent

active

040443868

ABSTRACT:
A tape cassette characterized by a bias changeover slot located adjacent to an accidental erasure preventive slot wherein, when the accidental erasure preventive slot is kept in an inoperative state, a U-shaped snap is secured in such slot so that the base of the U-shaped snap is disposed to cover the opening of the accidental erasure preventive slot, and when the slot is to be kept in an operative state, the U-shaped snap is secured in the slot so that the base of the U-shaped snap is arranged against the wall of the slot located opposite the adjacent bias changeover slot, whereby the accidental erasure preventive slot is uncovered and the snap is secured within the cassette.

REFERENCES:
patent: 2466514 (1949-04-01), Vagtborg
patent: 3686470 (1972-08-01), Stahlberg
patent: 3688057 (1972-08-01), Lee
patent: 3777074 (1973-12-01), Olmstead
patent: 3826489 (1974-07-01), Watkins, Jr.
patent: 3848265 (1974-11-01), Biery et al.
patent: 3950786 (1976-04-01), Shapley

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