Magnetic tape cassette with an improved reel spring

Details Magnetic tape cassette with an improved reel spring Magnetic tape cassette with an improved reel spring

1994-06-16

1995-08-01

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record medium

In container

G11B 2302

Patent

active

054384729

ABSTRACT:
A pressure spring for urging the reels toward the lower cassette casing of a magnetic tape cassette includes a central base portion secured to the upper casing, opposite end portions adapted for engaging the reels, and canted middle portions defined between the central base portion and the opposite end portions. Each of the middle portions joins to the central base portion at its proximal end and to the opposite end portions at its distal end. In accordance with the invention, the pressure spring further comprises a pair of laterally extending rib groups each formed along a limited length of the middle portions in close proximity with the central base portion to face the upper cassette casing.

REFERENCES:
patent: 4368860 (1983-01-01), Goto
patent: 4496118 (1985-01-01), Oishi et al.
patent: 4662579 (1987-05-01), Gelardi
patent: 5094434 (1992-03-01), Ryu
patent: 5326048 (1994-07-01), Kim

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