Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1991-01-11
1993-02-23
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record medium
In container
360 60, G11B 2302, G11B 1504
Patent
active
051895820
ABSTRACT:
The recording latch is pivotably mountable in a recording cassette between a record position and a no-record position. A plug at the bottom of the latch selectively blocks the record opening in the bottom wall of the cassette, and a flange at the top of the latch is selectively visible through the latch-engaging opening in the top wall. Two tabs are mounted on the flange, and the top wall of the cassette includes a record groove and a no-record groove. The tabs engage the record groove when the cassette can be used in the record mode and the tab engages the no-record groove when the cassette can not be used in the record mode. This engagement system is located entirely on the flange of the recording latch.
REFERENCES:
patent: 4320422 (1982-03-01), Rinkleib
patent: 4769732 (1988-09-01), Tanaka
patent: 4875109 (1989-10-01), Hanson
Bailey John A.
Hanson Robert L.
Griswold Gary L.
Kirn Walter N.
Levine Charles D.
Minnesota Mining and Manufacturing Company
Wolff John H.
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