Integral packing/covering member for hard-disc unit

Details Integral packing/covering member for hard-disc unit Integral packing/covering member for hard-disc unit

1991-04-24

1993-11-02

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 365, 428 71, 428 68, 4283044, 428 66, 4283084, 4283148, 4283157, 428447, 4283133, 4283142, 528 15, 528 34, 206524, 206586, 206521, C08K 524, B65D 8102

Patent

active

052582124

ABSTRACT:
An improvement is proposed in the assemblage of a cover-packing bult-up body for a magnetic hard-disc unit to be freed from the troubles caused by dusts or contamination of the gap space between the magnetic recording disc and the magnetic head as well as by the poor vibration-damping characteristics of the rubber packing between the covering member and the body of the casing. The improvement comprises, instead of using a pre-shaped rubber packing, the built-up body is assembled by using a curable liquid silicone rubber-based composition filled with fine hollow microspheres to form a packing on the surface of the covering member by the in situ curing of the composition applied thereto so that the rubbery packing layer has a spongy structure exhibiting good vibration-damping characteristics.

REFERENCES:
patent: 4072635 (1978-02-01), Jeram
patent: 4421783 (1983-12-01), Marwitz et al.
patent: 4580794 (1986-04-01), Gibbons
patent: 4726964 (1988-02-01), Isobe et al.
patent: 4990560 (1991-02-01), Ikeno et al.

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