Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1993-05-04
1995-03-07
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record medium
In container
360128, 15DIG13, G11B 2302, G11B 541
Patent
active
053963920
ABSTRACT:
A tape cassette for accommodating a reeled length of magnetic recording tape comprises a generally rectangular flattened box-like configuration. The cassette has top and bottom panels, front and rear wall and a pair of side walls. The front wall has a head access window and a pair of pinch roller access windows all defined therein. While a portion of the length of magnetic tape extends in the vicinity of and parallel to the front wall, tape cleaners are secured to front wall portions defined between the head access window and the pinch roller access windows so as to slidingly contact that portion of the length of magnetic recording tape as the latter is transported from one reel to the other reel. Each tape cleaner may be a fiber-intertwined cleaning member made of non-woven fabric or a fiber-tufted cleaning member made of crimped or curled fibers closely planted on a backing. With the fiber-intertwined cleaning members, that portion of the length of magnetic recording tape that is held in sliding contact with an intermediate portion of each fiber-intertwined cleaning member is rearwardly biased a predetermined bias distance within the range of 0.5 to 1 mm. With the fiber-tufted cleaning members, that portion of the length of magnetic recording tape that is held in sliding contact with an intermediate portion of each fiber-intertwined cleaning member is rearwardly biased a predetermined bias distance within the range of 0.1 to 1 mm.
REFERENCES:
patent: 1286790 (1971-04-01), Townsend
patent: 4345284 (1982-08-01), Saito
patent: 4984119 (1991-01-01), Backlund et al.
patent: 5081555 (1992-01-01), Rohloff
Nishiyama Tousaku
Ohata Tsumoru
Watanabe Masaru
Klimowicz William J.
Matsushita Electric - Industrial Co., Ltd.
Tupper Robert S.
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