Dynamic magnetic information storage or retrieval – Fluid bearing head support – Disk record
Reexamination Certificate
2007-06-12
2007-06-12
Chen, Tianjie (Department: 2627)
Dynamic magnetic information storage or retrieval
Fluid bearing head support
Disk record
Reexamination Certificate
active
11241440
ABSTRACT:
A disk drive for storing data includes a rotating storage disk and a slider positioned near the storage disk. The slider has a flying side and a read/write head. The flying side has (i) a leading edge, (ii) a trailing edge that is opposite the leading edge, (iii) first lateral edge, and (v) a second lateral edge that is opposite the first lateral edge. The flying side includes a leading bearing surface, an intermediate bearing surface, and a transverse channel positioned between the bearing surfaces. The transverse channel extends between the lateral edges to direct fluid flow to the lateral edges. Additionally, the flying side includes a first rear bearing surface, a second rear bearing surface, and a center rear bearing surface. Moreover, the flying side includes a first opening, a second opening and a center opening in the intermediate bearing surface. The openings allow for the flow of fluid to the rear bearing surfaces.
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Five pages that illustrate (i) on p. 1 a slider by Seagate Technology LLC (Slider by Seagate), a slider by Maxtor Corporation (Slider #1 by Maxtor), and a second slider by Maxtor Corporation (Slider #2 by Maxtor), (ii) on p. 2, simulated mass flow for the Slider by Seagate, Slider #1 by Maxtor, and Slider #2 by Maxtor, (iii) on p. 3, simulated air bearing pressure for the Slider by Seagate, Slider #1 by Maxtor, and Slider #2 by Maxtor, (iv) on p. 4, modeled CSS landings/takeoff analysis for the Seagate slider, Slider #1 by Maxtor, and Slider #2 by Maxtor, and (v) on p. 5, altitude sensitivity for the Slider by Seagate, Slider #1 by Maxtor, and Slider #2 by Maxtor. It is believed that the Slider by Seagate and slider #2, by Maxtor was on sale or was in public use more than one year prior to the Oct. 8, 2004 priority date of the present invention. It is also believed that slider #1 by Maxtor was in public use in Jul. 2004.
On p. 1, each slider includes (i) one or more air bearing surfaces (gray background with “/” surface background), (ii) one or more surfaces that are at a step down depth ( white background with “X” surface background), and (iii) one or more surface that are at a cavity depth (ligher gray background).
Broder James P.
Chen Tianjie
Roeder Steven G.
Seagate Technology LLC
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