Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Drum record
Patent
1992-04-08
1993-04-06
Levy, Stuart S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Drum record
G11B 2121
Patent
active
052008681
ABSTRACT:
A negative pressure air-bearing slider supports a transducer proximate a rotating disc. The slider includes a slider body having a surface with a leading edge, a trailing edge, and a first and second side edges. First and second raised side rails are positioned along the first and second side edges, respectively. A raised cross rail is positioned near the leading edge and extends between the side rails. A negative pressure cavity trails the cross rail and is positioned between the side rails. The negative pressure cavity develops subambient pressure during flight. A raised island forms an air-bearing surface positioned at the trailing edge and between the side rails. The island has a forward edge which is raised from the negative pressure cavity and is recessed from the air-bearing surface to increase pressurization of the air-bearing surface. The air-bearing surface increases lift and slider flying height at the trailing edge at low disc speeds. At high disc speeds, the air-bearing surface has a diminished effect relative to an increased subambient pressure effect of the negative pressure cavity which provides a more even flying height over inner and outer data tracks on the disc surface.
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Anonymous Publication No. 25946, Research Disclosure, Nov. 1985, No. 149.
Chapin Robert E.
Strom Richard A.
Levy Stuart S.
Renner Craig A.
Seagate Technology Inc.
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