Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1992-03-13
1994-05-03
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
G11B 560
Patent
active
053093038
ABSTRACT:
A slider that moves a transducer across a surface of a rotating storage disk includes an island that protrudes from a surface of a subambient pressure cavity for supporting the transducer, the island having length and width dimensions that are less than those of the slider. A groove is positioned at the forward end of at least one of the side rails that define the cavity to allow air to flow between the cavity and an area outside of said cavity. The groove serves to maintain the distance between the surface of that rail and the disk surface equal to the distance between the surface of the other rail and the disk surface as the slider moves across the disk. The rail includes a plurality of grooves for equalizing the flying heights of the rails; a first one of the grooves intersects the cavity to allow air to flow between the cavity and an area outside of the slider, while and a second one of the grooves is spaced from the cavity by a portion of the rail.
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Kogure et al., "Mechanical Characteristics of Floating Head and Recording Media for 3.2 G Byte Integration Type Magnetic Recording Disk", NTT Public Corp., Elec. Commun. Lab. Tech. J., pp. 291-297 (Jan. 1982).
Tagawa, "Optimum Design Consideration for Air-Lubricated Slider Bearings of Film Head", N.E.C. Research and Development, 68:90-100 (1983).
IBM T.D.B., vol. 27, No. 10A, Mar. 1985; Magnetic Disk Storage System with Structured Magnetic Head Slider; pp. 5820-5821.
Hsia Yiao-Tee
Pan Coda H. T.
Digital Equipment Corporation
Heinz A. J.
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