Hermetically sealed disk cartridge with adjustable optical windo

Details Hermetically sealed disk cartridge with adjustable optical windo Hermetically sealed disk cartridge with adjustable optical windo

1983-10-31

1985-09-17

Stephan, Steven L.

Dynamic information storage or retrieval

Storage medium structure

Combined with diverse art structure

206309, 206313, 369291, 369292, G11B 1704, G11B 2302

Patent

active

045424950

ABSTRACT:
A hermetically sealed cassette cartridge is disclosed, which encapsulates an optical disk suitable for use in an optical information recording and retrieval device. The cassette cartridge comprises a structural casing having a cavity for containing said recording medium and a spindle hub adapter for rotating the disk for data access. Data transfer is accomplished through a flexibly mounted transparent window, said window serving not only as a hermetical seal but also to alleviate the need for a thick dust defocusing layer on the said encapsulated recording medium.

REFERENCES:
patent: 4277810 (1981-07-01), Helmrich
patent: 4433410 (1984-02-01), Siyyj et al.
patent: 4477894 (1984-10-01), Clurman

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