公开(公告)号：US06445545B1

公开(公告)日：2002-09-03

申请号：US09532057

申请日：2000-03-21

申请人： Lin Guo ,  Dennis Chen ,  Matthew O'Hara

发明人： Lin Guo ,  Dennis Chen ,  Matthew O'Hara

IPC分类号： G11B2116

CPC分类号： G11B5/59627

摘要： A slider support structure is disclosed for minimizing off-rack due to disk flutter. In one embodiment, the slider support structure includes a gimbal assembly (306). The assembly (306) includes an outer ring (500) and an inner ring (502). The outer ring (500) is connected to the inner ring (502) via narrow strips (504 and 506) adjacent to the front (508) and back (510) surfaces of the slider body (512). The inner ring (502) is attached to the left (514) and right (516) surfaces of the slider body (512) via narrow strips (518 and 520). The strips (504 and 506) interconnecting the inner ring (502) and outer ring (500) define a flexible hinge that allows the slider body (512) to pivot relative to the assembly (306) about an axis (522) which, in this case, is the roll axis. Similarly, the strips (518 and 520) define a flexible hinge which allows the slider to pivot relative to the assembly (306) about another axis (524) which, in this case, is the pitch axis. The axes (522 and 524) are disposed close to the lower surface of the slider so that head off-track associated with such pivotal is minimized.

摘要翻译： 公开了一种滑块支撑结构，用于使由于磁盘颤动引起的离架减少。 在一个实施例中，滑块支撑结构包括万向节组件（306）。 组件（306）包括外环（500）和内环（502）。 外环（500）通过与滑块体（512）的前（508）和后（510）表面相邻的窄条（504和506）连接到内环（502）。 内环（502）经由窄条（518和520）附接到滑块体（512）的左（514）和右（516）表面。 互连内环（502）和外环（500）的条（504和506）限定了柔性铰链，其允许滑块体（512）相对于组件（306）围绕轴线（522）枢转，所述轴线（522） 这种情况下，是滚轴。 类似地，条带（518和520）限定柔性铰链，其允许滑块相对于组件（306）围绕另一个轴线（524）枢转，在这种情况下，该滑动件是俯仰轴线。 轴（522和524）设置成靠近滑块的下表面，使得与这种枢轴相关的头部偏离轨迹最小化。

公开(公告)号：US06687081B1

公开(公告)日：2004-02-03

申请号：US09570799

申请日：2000-05-15

申请人： Matthew O'Hara ,  Don Brunnet ,  Yu Sun ,  David M. Sigmond

发明人： Matthew O'Hara ,  Don Brunnet ,  Yu Sun ,  David M. Sigmond

IPC分类号： G11B5596

CPC分类号： G11B5/5547 ,  G11B5/5534 ,  G11B5/6011

摘要： A disk drive uses seek profile manipulation to provide enhanced transducer fly height control. The maximum seek velocity that is used during a seek operation is made dependent upon, among other things, the direction associated with the seek operation (i.e., either radially inward or radially outward with respect to the disk). In a preferred embodiment, the maximum seek velocity in a direction that normally results in a fly height loss is made less than the maximum seek velocity in the opposite direction. Thus, a minimum transducer fly height can be maintained with minimal effect on average seek time in the disk drive. In one approach, the maximum seek velocity values are stored within a lookup table within the disk drive.

摘要翻译： 磁盘驱动器使用查找配置文件操作来提供增强的换能器飞行高度控制。 在搜索操作期间使用的最大寻道速度取决于除了别的以外与寻道操作相关联的方向（即，相对于盘径向向内或径向向外）。 在优选实施例中，使通常导致飞高高度损失的方向上的最大寻道速度小于相反方向上的最大寻道速度。 因此，可以保持最小的传感器飞行高度，对磁盘驱动器中的平均寻道时间影响最小。 在一种方法中，最大寻道速度值存储在磁盘驱动器内的查找表中。

公开(公告)号：US20050167609A1

公开(公告)日：2005-08-04

申请号：US10808090

申请日：2004-03-23

申请人： Oleg Egorov ,  Matthew O'Hara

发明人： Oleg Egorov ,  Matthew O'Hara

IPC分类号： C22B3/02 ,  C22B3/24 ,  C22B30/06 ,  C22B60/00 ,  G21G4/00

CPC分类号： G21G4/00 ,  C22B3/02 ,  C22B3/24 ,  C22B30/06 ,  Y02P10/234

摘要： A method and apparatus for isolating and purifying a 213Bi radioactive isotope from an 225Ac source using a primary column and a primary sorbent which preferentially retains 225Ac over 213Bi when exposed to a compatible solvent in combination with a secondary column having a secondary sorbent which retains 213Bi when exposed to a mixture of the compatible solvent and 213Bi. A “compatible solvent” is a solvent which will preferentially remove 213Bi radioactive isotopes from a primary sorbent without removing 225Ac radioactive isotopes, and then allow 213Bi radioactive isotopes removed from the primary sorbent to be retained on a secondary sorbent, without having to dilute or otherwise chemically or physically modify the compatible solvent in between exposure to the primary and secondary sorbents.

摘要翻译： 使用初级柱和初级吸附剂从优选保留的第二级和第二种吸附剂分离和纯化来自第二十五章的Ac源的Bi放射性同位素的方法和装置， >当暴露于相容性溶剂时，当暴露于相容溶剂和<！ - SIPO - >相混合物时， SUP> 213 Bi。 “相容性溶剂”是一种溶剂，它将优先从初级吸附剂中除去<！ - SIPO - >二氧化钛放射性同位素，而不去除<！ - SIPO < 从初级吸附剂中除去的Bi放射性同位素被保留在第二吸附剂上，而不必在暴露于初级和次级吸附剂之间稀释或以其它方式化学或物理地改变相容的溶剂。