Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1985-06-20
1987-03-10
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record medium
In container
360 60, G11B 2304
Patent
active
046494529
ABSTRACT:
Disclosed is an erasure-prevention clip for use with an information disk or diskette assembly of the type comprising a jacket or envelope containing a magnetic diskette. Conventionally, the jacket, which is typically square, has in one edge thereof a notch which is covered by some removable tab to prevent erasure of recorded data; e.g., tape or the like, which, after removal, leaves the notch exposed and therefore subjects the diskette to possible erasure of the material previously recorded thereon. The present invention provides a notch-closing clip in the form of a U-shaped member having a bight dimensioned to fit the notch and a pair of legs closely spaced apart to receive the jacket and dimensioned to overlie relatively broad areas of opposite faces of the jacket that border the notch. The legs converge away from the bight so as to increase their grip on the jacket. The clip is of opaque material and is designed primarily for soft or so-called floppy disks of the five-inch size and having the notch in that edge that is parallel to the line of movement of the jacket into and out of the disk drive.
REFERENCES:
patent: 3950786 (1976-04-01), Shapley
patent: 4460930 (1984-07-01), Takahashi
Lee, "Reusable . . . Diskette", IBM Tech. Disc. Bull., vol. 26, No. 8, Jan. 1984, p. 4113.
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