Method and means for reducing undesirable effects of dirt partic

Details Method and means for reducing undesirable effects of dirt partic Method and means for reducing undesirable effects of dirt partic

1980-09-22

1982-06-15

Robinson, Ellis P.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

3581285, 369286, 369287, 369288, 346 76L, 3461351, 346137, 428 64, 428411, 428480, 428483, 428518, 428520, 428521, 428522, B32B 302, B32B 2730, H04N 576

Patent

active

043351735

ABSTRACT:
Methods and means for reducing undesirable effects of dirt particles on a flexible record device are disclosed. These undesirable effects are alleviated in accordance with the present invention by using a multilayer cushioning device to absorb the effect of dirt particles. The multilayer cushioning device comprises an amorphous cushioning layer, a flexible encompassing layer and, optionally, a flexible protective layer. The cushioning device can be superposed on the backside of the flexible record device itself, on a rigid platen of a recording or reading apparatus, or on a separate insert to be placed between the record device and the platen.

REFERENCES:
patent: 3250537 (1966-05-01), Henry
patent: 4006294 (1977-02-01), Canino
patent: 4060248 (1977-11-01), Lakervold
patent: 4071854 (1978-01-01), Bijon

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