Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1995-06-06
1998-06-30
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
360 9908, G11B 1708
Patent
active
057743029
ABSTRACT:
A disk storage drive for a disk storage device having a clean chamber for a storage disk having a central opening is provided with a brushless drive motor. The drive motor includes a stator and a winding on the stator and further includes a shaft aligned with the rotation axis of said motor, and a magnetically conducting member supported for rotation about the rotation axis and having an inner wall coaxially surrounding the stator. A magnet fixed to the inner wall of the magnetically conducting member is radially spaced from the stator. The disk storage device further includes a hub positioned within the clean chamber and contiguous with the magnetically conducting member so that the hub and the magnetically conducting member together form an outer rotor of the drive motor. The outer rotor has a radially extending flange having a surface which supports said storage disk. A support member contiguous with a portion of a partition of the clean chamber supports the shaft and has a recess receiving a portion of said radially extending flange, whereby the spacing between opposing walls of the clean chamber is reduced. Further, the magnetically conducting member comprises magnetic shield means at least peripherally surrounding the stator and at one end radially extending to the bearing and shaft assembly, and the rotor has a radially extending inner wall spaced closely adjacent to said stator windings, whereby said disk storage device is compact in a direction along said disk rotation axis while said motor magnet is axially separated from the plane of said storage disk.
REFERENCES:
patent: Re32702 (1988-06-01), Hasler et al.
patent: 3250929 (1966-05-01), Maier
patent: 3290525 (1966-12-01), Sudmeier
patent: 3845339 (1974-10-01), Merkle et al.
patent: 3864748 (1975-02-01), Herdman et al.
patent: 3922590 (1975-11-01), Warren et al.
patent: 4062049 (1977-12-01), Dirks
patent: 4115715 (1978-09-01), Muller
patent: 4150406 (1979-04-01), Stollorz
patent: 4275339 (1981-06-01), Burke et al.
patent: 4285016 (1981-08-01), Gilovich
patent: 4329604 (1982-05-01), Dunstan et al.
patent: 4336470 (1982-06-01), Gutris
patent: 4337491 (1982-06-01), Hasler et al.
patent: 4352133 (1982-09-01), Hager
patent: 4363057 (1982-12-01), Siverling et al.
patent: 4430603 (1984-02-01), Muller
patent: 4438542 (1984-03-01), Schuh
patent: 4519010 (1985-05-01), Elsaesser et al.
patent: 4535373 (1985-08-01), Schuh
patent: 4554473 (1985-11-01), Muller
patent: 4672250 (1987-06-01), Seitz
patent: 4739425 (1988-04-01), Dierkes et al.
patent: 4779165 (1988-10-01), Elsaesser
patent: 4805055 (1989-02-01), Wright
patent: 5006943 (1991-04-01), Elsaesser et al.
patent: 5128819 (1992-07-01), Elsaesser et al.
patent: 5216557 (1993-06-01), Elsaesser et al.
patent: 5422769 (1995-06-01), Elsaesser et al.
Drawing GAE Motor: (1 sheet) Papst-Motoren KG.
Drawing "Motor 933 5310 001" (2 sheets) Papst-Motoren KG.
Elsaesser Dieter
von der Heide Johann
Heinz A. J.
Papst Licensing GmbH
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