公开(公告)号：US06999284B2

公开(公告)日：2006-02-14

申请号：US10314923

申请日：2002-12-09

申请人： Srinivas Tadepalli ,  Ram M. Rao

发明人： Srinivas Tadepalli ,  Ram M. Rao

IPC分类号： G11B5/60 ,  G11B15/64 ,  G11B17/32 ,  G11B21/20

CPC分类号： G11B5/6005 ,  Y10T29/49036

摘要： An aerodynamic slider has at least one side surface that is continuously curved between the leading and trailing surfaces to substantially eliminate off-track forces on the side surface due to changing skew orientations. A slider profile is modeled, and a numerical simulation of airflow on the modeled profile is generated for each of a plurality of skew orientations within a range of skew orientations at which the slider will fly. The modeled slider profile is repeatedly adjusted based on the numerical simulations until a vibration analysis on the modeled profile indicates vibration does not exceed a predetermined minimum.

摘要翻译： 空气动力滑块具有至少一个侧表面，其在前表面和后表面之间连续地弯曲，从而基本上消除由于改变偏斜取向而在侧表面上的离轨力。 对滑块轮廓进行建模，并且在滑块将在其上飞行的倾斜取向的范围内的多个倾斜取向中的每一个上生成建模轮廓上的气流的数值模拟。 基于数值模拟反复调整模型滑块轮廓，直到建模轮廓上的振动分析表明振动不超过预定的最小值。

公开(公告)号：US07349178B2

公开(公告)日：2008-03-25

申请号：US10455463

申请日：2003-06-04

申请人： Srinivas Tadepalli ,  David Olivero

发明人： Srinivas Tadepalli ,  David Olivero

IPC分类号： G11B33/14

CPC分类号： G11B33/1446

摘要： A data storage system is provided. The data storage system has an enclosure with at least one disc rotating about a central axis and having a corresponding airflow. The airflow is subject to contamination by particles. A particle deposition surface is located inside the enclosure of the data storage system having a surface roughness of at least 30-microns. The particles contaminating the airflow are deposited on the particle deposition surface.

摘要翻译： 提供数据存储系统。 数据存储系统具有外壳，其具有围绕中心轴旋转并具有相应气流的至少一个盘。 气流受到颗粒污染。 颗粒沉积表面位于具有至少30微米的表面粗糙度的数据存储系统的外壳内。 污染气流的颗粒沉积在颗粒沉积表面上。

公开(公告)号：US07136261B2

公开(公告)日：2006-11-14

申请号：US10420326

申请日：2003-04-22

申请人： Sandeepan Bhattacharya ,  Srinivas Tadepalli

发明人： Sandeepan Bhattacharya ,  Srinivas Tadepalli

IPC分类号： G11B5/55

CPC分类号： G11B5/484 ,  G11B5/486 ,  G11B5/5582

摘要： A suspension for supporting a head slider over a media surface. The suspension includes a load beam, a base plate interface region, and a base plate. The load beam has a proximal end, a distal end and longitudinal centerline. A localized stiffening portion is raised above the load beam, and is connected to the load beam by rounded side edges. The base plate interface region is coupled to a proximal end of the load beam, and provides a pre-load bend. Finally, base plate is coupled to the base plate interface region such that the base plate is coupled to a side of the base plate interface region that is opposite the media surface.

公开(公告)号：US06751049B2

公开(公告)日：2004-06-15

申请号：US09895984

申请日：2001-06-29

申请人： Srinivas Tadepalli ,  David Allsup

发明人： Srinivas Tadepalli ,  David Allsup

IPC分类号： G11B3314

CPC分类号： G11B5/6005 ,  G11B33/148

摘要： An airstream conditioning apparatus for a data storage device. The data storage device has an enclosure supporting a spinning data disc and an actuator operably interfacing with the data disc in a data transfer relationship. The apparatus comprises a shroud supportable in the enclosure only downstream of the actuator with respect to air currents generated by the spinning disc. The shroud furthermore comprises a fin extending from the shroud in planar alignment with the disc.

摘要翻译： 一种用于数据存储装置的气流调节装置。 数据存储设备具有支持旋转数据盘的机壳和在数据传输关系中可操作地与数据盘连接的致动器。 该装置包括一个护罩，该护罩可以相对于旋转盘产生的空气流而仅在致动器下游的壳体中。 所述护罩还包括从所述护罩与所述盘平面对准延伸的翅片。

公开(公告)号：US06366432B1

公开(公告)日：2002-04-02

申请号：US09698812

申请日：2000-10-26

申请人： Srinivas Tadepalli ,  Kenneth L. Pottebaum ,  Roy L. Wood

发明人： Srinivas Tadepalli ,  Kenneth L. Pottebaum ,  Roy L. Wood

IPC分类号： G11B548

CPC分类号： G11B5/4826 ,  G11B5/484

摘要： Apparatus for providing nominally laminar flow of air currents in a disc drive. An actuator supports a head adjacent a rotatable disc and includes a rigid actuator arm with opposing planar top and bottom surfaces and a pair of opposing tapered surfaces which taper to a trailing edge. The top, bottom and tapered surfaces define a cross-sectional enclosure to provide nominally laminar flow of air currents adjacent the actuator arm induced by rotation of the disc. A channel is formed in the enclosure by a plurality of adjoining recessed surfaces to at least partially recess a head conductor along the length of the actuator arm within the enclosure to prevent obstruction of the air currents by the conductor. The conductor is preferably a flex circuit with a semi-flexible dielectric layer which supports a plurality of conductive traces.

摘要翻译： 用于在盘驱动器中提供名义上的气流层流的装置。 致动器支撑靠近可旋转盘的头部，并且包括具有相对的平面顶部和底部表面的刚性致动器臂和与后缘成锥形的一对相对的锥形表面。 顶部，底部和锥形表面限定了横截面外壳，以便通过盘旋转引起的靠近致动器臂的名义上的气流层流。 通过多个相邻的凹入表面在外壳中形成通道，以在外壳内沿致动器臂的长度至少部分地凹入头部导体，以防止导体阻塞气流。 导体优选是具有支撑多个导电迹线的半柔性介电层的柔性电路。

公开(公告)号：US07149053B2

公开(公告)日：2006-12-12

申请号：US10176775

申请日：2002-06-21

申请人： Srinivas Tadepalli ,  James H. Smith ,  Yiren Hong ,  ChoonKiat Lim ,  Walter Wong

发明人： Srinivas Tadepalli ,  James H. Smith ,  Yiren Hong ,  ChoonKiat Lim ,  Walter Wong

IPC分类号： G11B33/14

CPC分类号： G11B33/148 ,  G11B33/08

摘要： The disc drive housing encloses a spindle motor carrying a disc having a data surface. An actuator assembly includes an actuator arm carrying a head. The housing includes a first surface portion adjacent to the data surface of the disc. The housing also includes a plurality of surface portions that define a recess, which allows the actuator arm to move over the data surface of the disc. The plurality of surface portions include a sloped surface portion sloping away from the data surface and preventing wind generated by the disc rotating about an axis from separating from the sloped surface portion. Alternatively, a disc drive includes a housing that defines a recess. The housing encloses a disc mounted on a spindle motor that rotates the disc about an axis and thereby generates wind within the housing. An upstream surface portion and a downstream surface portion of the housing both face toward a data surface of the disc. A discontinuity, such as a step, between the upstream surface portion and the downstream surface portion causes a wind recirculation region within the recess. The disc drive also includes an actuator arm that carries a head, which the recess allows to move over the data surface of the disc. An actuator limiting device prevents the actuator arm from entering the wind recirculation region.

摘要翻译： 盘驱动器壳体包围承载具有数据表面的盘的主轴马达。 致动器组件包括承载头的致动器臂。 壳体包括与盘的数据表面相邻的第一表面部分。 壳体还包括限定凹部的多个表面部分，其允许致动器臂在盘的数据表面上移动。 多个表面部分包括倾斜表面部分，其倾斜远离数据表面，并防止由围绕轴线旋转的盘产生的风从倾斜表面部分分离。 或者，盘驱动器包括限定凹部的壳体。 壳体包围安装在主轴电动机上的盘，其使盘围绕轴线旋转，从而在壳体内产生风。 壳体的上游表面部分和下游表面部分面向盘的数据表面。 在上游表面部分和下游表面部分之间的不连续性，例如台阶，导致凹陷内的风再循环区域。 磁盘驱动器还包括执行器臂，该致动器臂承载头部，凹部允许其移动到盘的数据表面上。 致动器限制装置防止致动器臂进入风再循环区域。

公开(公告)号：US06275352B1

公开(公告)日：2001-08-14

申请号：US09348887

申请日：1999-07-01

申请人： Srinivas Tadepalli ,  Roy L. Wood ,  John D. Stricklin

发明人： Srinivas Tadepalli ,  Roy L. Wood ,  John D. Stricklin

IPC分类号： G11B3314

CPC分类号： G11B33/08

摘要： An apparatus and method for minimizing the effects of rotational and translational vibrations on a disc drive. A plurality of isolation devices are integrated into a base deck of the disc drive at industry standard locations. Each isolation device includes a rigid threaded collar into which a corresponding fastener is inserted to secure the base to a user environment, a compliant elastomer portion disposed between the collar and remaining portions of the base deck and a rigid stiffener which contacts and surrounds at least a portion of an outer surface of the elastomer portion. Stiffnesses of the elastomer portions are individually selected so that the plurality of isolation devices cooperate to reduce the effects of various translational and rotational vibratory inputs by bunching resonance modes within a selected frequency range.

摘要翻译： 用于最小化盘驱动器上的旋转和平移振动的影响的装置和方法。 在工业标准位置，多个隔离装置集成到盘驱动器的基座中。 每个隔离装置包括刚性螺纹套环，相应的紧固件被插入其中以将基部固定到使用者环境中;柔性弹性体部分，设置在该套环与该底座甲板的其余部分之间;以及一刚性加强件，该刚性加强件与至少一个 弹性体部分的外表面的一部分。 单独地选择弹性体部分的刚度，使得多个隔离装置协作以通过在所选频率范围内聚束谐振模式来减少各种平移和旋转振动输入的影响。

公开(公告)号：US20100061010A1

公开(公告)日：2010-03-11

申请号：US12204895

申请日：2008-09-05

申请人： Yimin Niu ,  Ning Yu ,  Robert John Bloom-Duren ,  Srinivas Tadepalli

发明人： Yimin Niu ,  Ning Yu ,  Robert John Bloom-Duren ,  Srinivas Tadepalli

IPC分类号： G11B33/14

CPC分类号： G11B33/146 ,  G11B33/1473

摘要： Bases for data storage systems are disclosed. Some embodiments of the bases are used in hard disc drives. Some embodiments include particle diverters. Certain embodiments of the particle diverters include a particle diverter opening adjacent to an actuator region of a hard disc drive.

摘要翻译： 公开了数据存储系统的基础。 基座的一些实施例用于硬盘驱动器。 一些实施例包括粒子转向器。 粒子转向器的某些实施例包括与硬盘驱动器的致动器区域相邻的粒子分流器开口。

公开(公告)号：US07535670B2

公开(公告)日：2009-05-19

申请号：US10768595

申请日：2004-01-30

申请人： Yaling D. Fan ,  Mark A. Toffle ,  Xu Zuo ,  Srinivas Tadepalli

发明人： Yaling D. Fan ,  Mark A. Toffle ,  Xu Zuo ,  Srinivas Tadepalli

IPC分类号： G11B33/14

CPC分类号： G11B25/043 ,  G11B33/148

摘要： An apparatus including a cantilevered head assembly is disclosed. The apparatus includes a flow control device to control flow proximate to the cantilevered head assembly. In one embodiment, the flow control device includes a blower assembly coupleable to a pressure source and/or vacuum assembly to limit flow disturbances proximate to the cantilevered head assembly.

摘要翻译： 公开了一种包括悬臂头组件的装置。 该装置包括用于控制靠近悬臂头组件的流量的流量控制装置。 在一个实施例中，流量控制装置包括可耦合到压力源和/或真空组件以限制靠近悬臂头组件的流动扰动的鼓风机组件。

公开(公告)号：US07133238B2

公开(公告)日：2006-11-07

申请号：US10768236

申请日：2004-01-30

申请人： Srinivas Tadepalli ,  Xu Zuo

发明人： Srinivas Tadepalli ,  Xu Zuo

IPC分类号： G11B21/02

CPC分类号： G11B21/02 ,  G11B5/59633

摘要： A servo track writing apparatus for recording servo information or patterns on a disc or discs for a data storage device is disclosed. The servo track writing apparatus includes a shroud proximate to and downstream of a cantilevered head assembly to limit DC wander for writing servo information to disc or discs. In particular, the shroud is position in an operating zone or sector of the cantilevered head assembly or between an air dam and stripper of a servo track writing apparatus.

摘要翻译： 公开了一种用于在盘上记录伺服信息或图形的伺服记录装置，用于数据存储装置。 伺服轨迹写入装置包括靠近悬臂头组件的下游的护罩，以限制用于将伺服信息写入盘或盘的DC漂移。 特别地，护罩位于悬臂头组件的操作区域或扇形区域中，或位于伺服磁道写入装置的气坝和汽提器之间。