Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1995-07-19
1997-05-20
Levy, Stuart S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
G11B 3314
Patent
active
056317875
ABSTRACT:
In a disk drive including a conventional head and disk assembly containing a spindle motor for rotating a disk hub at a constant angular velocity and at least one rotating disk mounted to the hub, apparatus comprising a base having a peripheral sidewall surrounding the base. The base supports the head and disk assembly within an interior space defined by the peripheral sidewalls in combination with the base. To reduce the power consumption as well as the operating temperature of the disk drive by controlling and confining the air mass proximate the disk, a shroud is positioned within the interior space and proximate the disk such that the shroud substantially circumscribes the circumference of the disk for an arc of approximately 320 degrees.
REFERENCES:
patent: 4280155 (1981-07-01), Scott et al.
patent: 4568988 (1986-02-01), McGinlay et al.
patent: 4583213 (1986-04-01), Bracken et al.
patent: 4594626 (1986-06-01), Frangesh
patent: 4979062 (1990-12-01), Stefansky et al.
patent: 5208712 (1993-05-01), Hatch et al.
IBM Technical Disclosure Bulletin (vol. 23 No. 9 Feb. 1981), p. 4310.
E. Lennemann, "Aerodynamic Aspects of Disk Files", IBM J. Res. Develop., Nov. 1974, pp. 480-488.
Huang Benjamin
Ramsdell Richard G.
Cao Allen
Chun Debra A.
Harrison David B.
Levy Stuart S.
Moser, Jr. Raymond R.
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