Magnetic tape cassette

Details Magnetic tape cassette Magnetic tape cassette

1987-08-21

1988-08-30

Foster, Jimmy G.

Special receptacle or package

For holding a machine readable recording medium

For holding a tape cassette

206389, 2065243, 264257, 360132, B65D 85672

Patent

active

047670070

ABSTRACT:
A magnetic tape cassette having a magnetic tape, a pair of reel hubs and a cassette body for rotatably retaining the pair of reel hubs around which the magnetic tape is wound. A protective layer fabricated of a nonwoven fabric is formed unitedly connected to the surface of the cassette body. The cassette body is fabricated of a plastic material or the like by injection molding. The protective layer is formed by disposing a nonwoven fabric in a cavity of an injection mold at the time the injection molding is to be conducted, and subsequently, unitedly connecting the nonwoven fabric to the cassette body simultaneously with the injection molding of the cassette body. The nonwoven fabric should preferably have an antistatic effect. Since the protective layer is fabricated of a nonwoven fabric, the cassette can be provided with a protective layer covering the entire outer surface of the cassette body and improve its shock fracture strength, therefore it becomes hard to damage the cassette. Further, since the nonwoven fabric has an antistatic effect, it is possible to prevent the cassette body from being electrically charged, and therefore efficiently prevent dust adhering to the cassette body.

REFERENCES:
patent: 4186235 (1980-01-01), Bramwell
patent: 4511148 (1985-04-01), Amos et al.
patent: 4613535 (1986-09-01), Harpell
patent: 4663225 (1987-05-01), Farley
"T300: The Cassette Designed for Data" Information Terminals, advert., six pages, 2-1972.

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