Spindle motor for driving memory disk

Details Spindle motor for driving memory disk Spindle motor for driving memory disk

1996-11-08

1998-02-03

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

310 67R, 310 90, 384107, 384115, G11B 1702, H02K 708, F16C 3206

Patent

active

057151164

ABSTRACT:
In a spindle motor for a driving a memory disk, a closed space is formed by a sleeve, an end portion of a shaft and a thrust plate. The closed space is connected to outside open space by a connection path, thereby effectively discharging undesirable air in an assembling stage.

REFERENCES:
patent: 3449028 (1969-06-01), Hart
patent: 4547081 (1985-10-01), Tanaka et al.
patent: 4557610 (1985-12-01), Asada et al.
patent: 5018881 (1991-05-01), Asada
patent: 5141338 (1992-08-01), Asada et al.

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