Cassette casing with a permanently removable nonreattachable phy

Details Cassette casing with a permanently removable nonreattachable phy Cassette casing with a permanently removable nonreattachable phy

1997-09-26

1999-11-23

Davis, David D.

Dynamic magnetic information storage or retrieval

Miscellaneous

360132, G11B 2302

Patent

active

059911328

ABSTRACT:
A tape cassette having a feed reel and a takeup reel with tape on the reels and a mounting cassette casing for enclosing the feed reel, the takeup reel and the tape. The mounting cassette casing having an exterior perimeter with a permanently removable nonreattachable blocking physical structure affixed to and protruding beyond the exterior perimeter of the mounting cassette casing to break upon insertion in a tape cassette apparatus unable to receive the permanently removable nonreattachable blocking physical structure revealing an altered appearance.

REFERENCES:
patent: 3612774 (1971-10-01), Wiklund
patent: 3724858 (1973-04-01), Martin
patent: 4333568 (1982-06-01), Weldin
patent: 4385693 (1983-05-01), Gelardi et al.
patent: 4545483 (1985-10-01), Shiba et al.
patent: 4716745 (1988-01-01), Hehn
patent: 4796771 (1989-01-01), Stettler
patent: 5400185 (1995-03-01), Scerbo, III

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