Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1991-07-15
1992-12-08
Severin, David J.
Dynamic magnetic information storage or retrieval
Record medium
In container
360128, 360137, G11B 2350
Patent
active
051703050
ABSTRACT:
A magnetic tape cleaner comprising a back-glued pad of cleaning cotton, and a resilient fastener means to secure said back-glued pad of cleaning cotton to the casing of a video tape inside the protective cover thereof for cleaning the magnetic tape, wherein said resilient fastener means has a first unitary hooked member hooked in the infrared projecting hole in the casing of said video tape, a second unitary hooked member hooked in the gap defined in the casing of said video tape at the left side between the protective cover thereof, and a rectangular hole disposed in alignment with said infrared projecting hole for the passing therethrough of the infrared light from a video tape player. The cleaning pad is resiliently forced to move backwards by the magnetic tape of the video tape when the video tape is loaded in a video tape player to play, so that friction force between the magnetic tape and the cleaning pad is greatly reduced during cleaning operation.
REFERENCES:
patent: 4577251 (1986-03-01), Okada
patent: 4722016 (1988-01-01), Shirako et al.
patent: 4984119 (1991-01-01), Backlund et al.
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