Sealed cassette containing recording carrier tape

Details Sealed cassette containing recording carrier tape Sealed cassette containing recording carrier tape

1988-05-11

1989-03-21

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record medium

In container

369272, G11B 2308

Patent

active

048149250

ABSTRACT:
Cassette containing a recording carrier in tape form, and including means for transporting the recording carrier tape along an information transfer member forming part of the means for reading and/or writing and/or erasing the recording carrier tape. The cassette has an enclosure of hermetically sealed construction, and is filled with an inert low pressure gas which does not react chemically with the surface of the tape or with the surface of the tape guide means, if such means exists, such as hydrogen or helium gas at a pressure below 0.05 MPa.

REFERENCES:
patent: 3553391 (1971-01-01), Karnopp
patent: 3569637 (1971-03-01), Esten
patent: 3692956 (1972-09-01), Northrup
Patent Abstracts of Japan, vol. 6, No. 112, (p. 124).
Patents Abstracts of Japan, vol. 6, No. 145, (p. 132).
Patents Abstracts of Japan, vol. 9, No. 2, (p. 325).

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