Magnetic disc drive device

Details Magnetic disc drive device Magnetic disc drive device

1995-05-11

1997-05-27

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 9807, 360 9904, G11B 1920

Patent

active

056337698

ABSTRACT:
A magnetic disc drive device includes a labyrinth structure proximate to the ball bearings to effectively prevent scattering of particles. The labyrinth structures are formed by various arrangements where complicated passages are defined by elements arranged proximate to the inner ring and the outer ring of a ball bearing. One of the elements forming the passages being either the hub or the frame of the magnetic disc drive device.

REFERENCES:
patent: 3019066 (1962-03-01), Decker
patent: 3978801 (1976-09-01), Forte
patent: 4824122 (1989-04-01), Raj et al.
patent: 4827168 (1989-05-01), Nakajima
patent: 4898480 (1990-02-01), Raj et al.
patent: 4907897 (1990-03-01), Shirotori
patent: 5305163 (1994-04-01), Holm
patent: 5411338 (1995-05-01), Goto
patent: 5426548 (1995-06-01), Fujii et al.
patent: 5457588 (1995-10-01), Hattori et al.

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