Magnetic-tape cassette with stretched liner arrangement

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4681280
SERIAL NO

06844053

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Within the housing of a magnetic tape cassette, two liner foils bear against turns of magnetic tape on each of two reel hubs. Each reel hub has an inner ring and an outer ring, the inner ring being longer axially than the outer ring, and arranged so that each liner foil bears elastically against the respective axial ends of the inner and outer rings of each reel hub adjacent that foil. Each cassette main wall has two drive openings aligned with the respective reel hubs. Each opening has a centering rim for the reel hub, and a concentric flat supporting rim having an inner diameter larger than the outer diameter of the reel hub, for supporting the liner foil adjacent that cassette main wall. The distance between opposed supporting rings is greater than the sum of the width of the magnetic tape and the thicknesses of the two foils.

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Patent Owner(s)

Patent OwnerAddress
POLYGRAM INTERNATIONAL HOLDING B V A CORP OF THE NETHERLANDSGERRIT VAN DER VEENLAAN 4 3743 DN BAARN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bos, Sinnighe J Glanerbrug, NL 1 8
Duurland, Jozef M Leusden, NL 6 43
Kreeft, Hendrik K Dinxperlo, NL 4 51

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