Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1981-04-01
1983-07-19
Wolff, John H.
Dynamic magnetic information storage or retrieval
Record medium
In container
206444, G11B 2304
Patent
active
043947000
ABSTRACT:
A mechanism for restraining a magnetic disc within a cartridge and for sealing the cartridge when the cartridge is not in use is described. The present invention has one or more spring-loaded members located on the bottom of the cartridge which are coupled to the cartridge but movable with respect to it and which are separate from the rotatable hub assembly to which the magnetic disc is clamped within the cartridge. The spring-loaded member or members press in an axial direction against a surface on the hub to force together the overlapping sealing surfaces on the hub and the cartridge, thus sealing the cartridge and preventing the hub assembly and magnetic disc from rotating when the cartridge is not in use. When the cartridge is inserted into a disc-drive assembly, release pins overcome the spring-loading of the member or members and allow the sealing surface on the hub assembly and cartridge to separate. The hub assembly and disc may thus be rotated as they are no longer in contact with any part of the cartridge. Also clean air is permitted to circulate from the disc-drive assembly into the cartridge through the opening created by the separation of the sealing surfaces.
REFERENCES:
patent: 3526884 (1970-09-01), Buslik et al.
patent: 3635608 (1972-01-01), Crouch et al.
patent: 3715739 (1973-02-01), Van Acker
patent: 4078246 (1978-03-01), Berthoux et al.
patent: 4084200 (1978-04-01), Adair et al.
patent: 4106066 (1978-08-01), Kudo
patent: 4184184 (1980-01-01), Hedin et al.
Disctron, Inc.
Wolff John H.
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