Magnetic tape cassette

Details Magnetic tape cassette Magnetic tape cassette

1992-11-10

1994-08-16

Stodola, Daniel P.

Winding, tensioning, or guiding

Unwinding and rewinding a machine convertible information...

Cartridge system

G03B 104

Patent

active

053379730

ABSTRACT:
A magnetic tape cassette which solves the problem of deformation of a guide groove due to a sink mark formed when the neighboring portions of a shaft insertion opening are reduced in thickness to reduce the weight of the cassette case. A tongue-shaped projection is formed adjacent to a central guide groove, the projection including a recessed portion, such as a circular recess or a lateral notch, for reducing the thickness of the projection.

REFERENCES:
patent: 4097006 (1978-06-01), Saito
patent: 4438860 (1984-03-01), Okamura et al.
patent: 4466585 (1984-08-01), Maehara
patent: 4773614 (1988-09-01), Makino et al.

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