Tape cassette

Details Tape cassette Tape cassette

1985-09-10

1987-11-10

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record medium

In container

242199, G11B 2302, G03B 104

Patent

active

047061499

ABSTRACT:
In a tape cassette, which comprises a cassette casing which consists of upper and lower halves which are molded by injection molding from a synthetic resin, reels mounted for rotation in the cassette casing and having at least lower flanges, and a groove formed in an outer surface of a bottom wall of the lower half in a region which is adjacent the lower flanges of the reels, an improvement comprises at least a projection being formed on at least a portion of an inner surface of the bottom wall of the lower half which overlies the guide groove so as to facilitate a flow of a molten resin injection near the guide groove during molding of the lower half.

REFERENCES:
patent: 3796394 (1974-03-01), Souza
patent: 3900170 (1975-08-01), Serizawa
patent: 4368860 (1983-01-01), Goto
patent: 4484248 (1984-11-01), Ogiro

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