Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1997-06-26
1999-08-17
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record medium
In container
G11B 23087
Patent
active
059402547
ABSTRACT:
A corner roller for guiding a tape recording/reproducing medium in a tape cartridge having a body defining an axially extending bore and an undulating circumferential surface. The undulating circumferential surface has an inverted radius for contacting a drive belt in a tape cartridge. The circumferential surface of the body defines a pair of opposed end portions and a center portion having about the same diameter d1, in which the center portion is respectively separated from the end portions by a pair of spaced intermediate portions, each having a diameter d2 less than the diameter d1 of the end and center portions. The circumferential surface in profile defines a surface which is a smooth surface of revolution axially traversing from a first diameter d1 to a second smaller diameter d2 to a middle portion having about the first diameter d1, then to another portion having a smaller diameter d2 merging with an end portion 66 having a larger diameter d1.
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patent: 5416659 (1995-05-01), Saitou et al.
patent: 5421259 (1995-06-01), Shiba et al.
patent: 5501386 (1996-03-01), Kobayshi
patent: 5515216 (1996-05-01), Saitou et al.
patent: 5559655 (1996-09-01), Saitou et al.
Kananen Ronald P.
Sony Corporation
Sony Electronics Inc.
Tupper Robert S.
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