Magnetic tape cassette

Details Magnetic tape cassette Magnetic tape cassette

1985-08-27

1987-11-10

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record medium

In container

36013021, 242198, G11B 2304, G11B 1560

Patent

active

047061480

ABSTRACT:
A magnetic tape cassette of the type in which the tape is extracted from the cassette through tape drawing openings formed at opposite sides of a central opening in the cassette for recording and reproducing. In accordance with the invention, each of the tape drawing openings in a rectangular opening defined by a lower rib protruding from the lower half case and confronting one edge of the magnetic tape, a guide formed integrally with the lower rib and having a sliding surface with which a rear surface of the magnetic tape contacts, an upper rib protruding from the upper half case and confronting the other edge of the magnetic tape, and a cassette case wall confronting a front surface of the magnetic tape. The upper rib is recessed farther inwardly of the guide than the sliding surface.

REFERENCES:
patent: 4097006 (1978-06-01), Sato
patent: 4363456 (1982-12-01), Goto
patent: 4466585 (1984-08-01), Maehara
patent: 4484719 (1984-11-01), Schoenmakers
patent: 4558387 (1985-12-01), Shiba et al.

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