Method of manufacturing a disk cassette shutter

Details Method of manufacturing a disk cassette shutter Method of manufacturing a disk cassette shutter

1995-06-07

1997-04-15

Ball, Michael W.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156269, 156277, 360133, G11B 2303, B32B 3102

Patent

active

056205473

ABSTRACT:
The present invention provides a shutter for a protective envelope containing a recording disk, having both satisfactory sliding property and satisfactory heat-resisting property. The shutter is formed by folding a laminated sheet having a first layer formed by folding a laminated sheet having high heat-resisting property and a second layer formed of a material having low frictional property so that the first layer forms the outer surface of the shutter and the second layer form the inner surface of the shutter. The first layer of the laminated sheet ensures the shutter satisfactory heat-resisting performance and the second layer of the same ensures the shutter satisfactory sliding performance. A printed layer or an evaporated metal layer may be formed between the first and second layers of the laminated sheet and/or the first and second layers of the laminated sheet may be colored to enhance the aesthetic appearance of the shutter.

REFERENCES:
patent: 4517617 (1985-05-01), Tsuji et al.
patent: 4698714 (1987-10-01), Sugawara et al.
patent: 4708726 (1987-11-01), Kato
patent: 4838965 (1989-06-01), Bussard
patent: 4921562 (1990-05-01), Fujii
patent: 5121380 (1992-06-01), Fujita et al.
patent: 5161080 (1992-11-01), Funayama et al.
patent: 5226035 (1993-07-01), Kato et al.

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