Blocking switch for computer diskettes

Details Blocking switch for computer diskettes Blocking switch for computer diskettes

1987-08-07

1989-03-28

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record medium

In container

360 60, G11B 2304

Patent

active

048169544

ABSTRACT:
A slidable insert for blocking the disk write arm notch of diskettes used in computers comprises an elongate insert position for sliding movement in the edge portion of the envelope of a diskette to block the right protection notch thereof so that the read-write-erase function of the computers are prevented from operation, so that accidental erasure or writing over of previously stored information will not occur. The slidable insert is pushed in one direction to block the notch, and push in an opposite direction to unblock the notch with engaging tab portions extending through the envelope of the diskette for grasping.

REFERENCES:
patent: 3416150 (1968-12-01), Lindberg
patent: 4409630 (1983-10-01), Saito
patent: 4618060 (1986-10-01), Tarter
patent: 4649452 (1987-03-01), Brugman

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