Static inhibiting bars for videotape cassette

Details Static inhibiting bars for videotape cassette Static inhibiting bars for videotape cassette

1985-02-04

1988-06-28

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record medium

In container

242199, G11B 2302

Patent

active

047543574

ABSTRACT:
The front-facing planar surfaces of a videotape cassette is provided with a series of parallel triangular or semi-elliptical ribs spaced from each other a maximum distance of about 4 mm so that an air barrier is produced between the tape and the ribs and the tape is thus prevented from contacting the planar surface or the ribs when the tape is in motion past the ribs.

REFERENCES:
patent: 3934842 (1976-01-01), Posso
patent: 4126283 (1978-12-01), Kawachi
patent: 4368860 (1983-01-01), Goto
patent: 4419708 (1983-12-01), Ogiro et al.
patent: 4466582 (1984-04-01), Shiba

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