Spacer for stacked recorded discs

Details Spacer for stacked recorded discs Spacer for stacked recorded discs

1980-09-22

1982-02-16

Dixson, Jr., William T.

Dynamic information storage or retrieval

Storage medium structure

Adjuncts or adapters

206309, 206516, 206521, 369212, G11B 362, B65D 8502, B65D 8557, B65D 8102

Patent

active

043162819

ABSTRACT:
A spacer for use between two adjacent recorded discs in a stack of the discs includes a flat, circular, relatively rigid plate having opposed major surfaces and a hole through the center thereof. The plate has portions around its peripheral edge and the edge of the hole which are thicker than the rest of the plate and project beyond the major surfaces of the plate. The thicker portions of the spacer engage unrecorded surface portions of the adjacent recorded discs so as to space the recorded portions of the adjacent recorded discs from the major surfaces of the spacer plate to prevent dust, dirt and other contaminating particles from being pressed into or against the recorded portions of the recorded discs which may damage the recorded discs.

REFERENCES:
patent: 1683440 (1928-09-01), Bodwell et al.
patent: 1908940 (1933-05-01), Weidel
patent: 2906536 (1959-09-01), Mauerhoff
patent: 3051496 (1962-08-01), Borgia
patent: 3169023 (1965-02-01), Rivas
patent: 3360271 (1967-12-01), George
patent: 3670878 (1972-06-01), Seiger
patent: 3854729 (1974-12-01), Downs
patent: 4021048 (1977-05-01), Fowler et al.

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