Tape cassette with reduced shrinkage mark

Details Tape cassette with reduced shrinkage mark Tape cassette with reduced shrinkage mark

1993-06-03

1995-07-18

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 2302

Patent

active

054347360

ABSTRACT:
Shrinkage mark due to difference in thickness between a thick bottom portion and a thin bottom wall portion of a cassette is reduced by forming a recess in the thick wall portion and life of molding dies is elongated by forming an end wall of the recess having a top surface in common with the parting line of the thick bottom wall portion.

REFERENCES:
patent: 5189583 (1993-02-01), Okamura

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