Protective cartridge for disc record

Details Protective cartridge for disc record Protective cartridge for disc record

1983-12-29

1985-02-19

Dixson, Jr., William T.

Special receptacle or package

For body treatment article or material

Bandage, drape or dressing

206303, 206312, 206522, 360133, 369291, 369 772, B65D 8557, G11B 1704, G11B 2302

Patent

active

044999968

ABSTRACT:
A record package includes a disc record housed within an enclosure. The enclosure comprises thin membrane covers held in tension between a metallic outer frame and two inner rings. The inner rings include dust seals which are held against the disc record by the tension of the membranes. When the disc record rotates, the windage it creates lifts the dust seals from the disc record. The use of a clear membrane eliminates the need for a sight window when recording on the playing back from an optical disc record.

REFERENCES:
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patent: 2681142 (1954-06-01), Cohen
patent: 3668658 (1972-06-01), Flores et al.
patent: 4063286 (1977-12-01), Takahara et al.
patent: 4072229 (1978-02-01), Lloyd et al.
patent: 4097895 (1978-06-01), Spong
patent: 4168835 (1979-09-01), Omiya et al.
patent: 4222071 (1980-09-01), Bell
patent: 4277810 (1981-07-01), Helmrich
patent: 4365258 (1982-12-01), Geyer et al.
patent: 4379507 (1983-04-01), Liabres
patent: 4433410 (1984-02-01), Siryj et al.
patent: 4462036 (1984-07-01), Leonard et al.

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