Active magnetic latch for disk drive and method
    1.
    发明授权
    Active magnetic latch for disk drive and method 失效
    用于磁盘驱动器的主动磁锁和方法

    公开(公告)号:US5303101A

    公开(公告)日:1994-04-12

    申请号:US851372

    申请日:1992-03-10

    CPC分类号: G11B5/54

    摘要: When a rotary-actuator voice coil type disk drive is powered down the actuator arm is moved to a parking position against an I.D. stop by a disk spindle motor back EMF, resulting from the spinning down of the spindle motor. Current is applied by the back EMF through a delay circuit to a latch arm voice coil on one end of a latch arm and forming part of a magnetic circuit including a drive permanent magnet on a ferrous base plate and a ferrous upper plate. Resultant movement of the latch arm overcomes a spring bias of a torsion spring extending between the base plate and pivoted latch arm normally keeping the latch arm in an unlatched position. A latch permanent magnet extends from the other end of the latch arm and is brought into spaced proximity, but not contact, with a ferrous member extending from the actuator arm so that the magnetic force therebetween holds the actuator arm against the I.D. stop in latched position to withstand high shock loadings. Powering the rotary actuator voice coil motor up overcomes the magnetic force and allows the biased torsion spring to move the latch arm to the unlatched position without resultant loss of data storage area.

    摘要翻译: 当旋转致动器音圈型磁盘驱动器断电时,致动器臂被移动到与I.D.相对的停车位置。 由主轴电机反转的磁盘主轴电机停止,由主轴电机的下降引起。 反电动势通过延迟电路将电流施加到锁臂的一端上的锁臂音圈,并在铁基板和铁上板上形成包括驱动永久磁铁的磁路的一部分。 闩锁臂的产生的运动克服了在基板和枢转的闩锁臂之间延伸的扭转弹簧的弹簧偏压,通常将闩锁臂保持在解锁位置。 闩锁永磁体从闩锁臂的另一端延伸并且与从致动器臂延伸的铁构件隔开接近但不接触,使得其间的磁力将致动器臂保持抵靠于I.D. 停止在锁定位置以承受高冲击载荷。 向旋转执行器音圈电机供电克服了磁力,并允许偏置的扭转弹簧将闩锁臂移动到解锁位置,而不会导致数据存储区域的损失。

    Micro miniature hard disk drive
    2.
    发明授权
    Micro miniature hard disk drive 失效
    微型微型硬盘驱动器

    公开(公告)号:US5291355A

    公开(公告)日:1994-03-01

    申请号:US850443

    申请日:1992-03-10

    摘要: A hard disk drive for a computer system including a head disk assembly with a disk platter of approximately one-and-eight-tenths-inch in diameter capable of storing more than forty megabytes. In an embodiment, data tracks on each data surface of the platter are spaced at approximately 2,558 tracks per inch and each data track has approximately 36,000 flux changes per inch. An actuator positions a pair of read/write heads on each platter surface using a voice coil motor to position the heads over a cylinder. A magnetic actuator latch attaches to another magnet on the actuator and locks the heads in a parked position at the innermost diameter of the platter. A spindle motor rotates the platter at approximately 5,400 revolutions per minute. A base plate, with a gasketed surface and a raised lip, hermetically seals with a cover to the base plate such that the platter, the actuator, the actuator latch, and the spindle motor are all contained within. The cover carries a breather filter and recirculating air filter. The raised lip on the base plate prevents direct electrical interference from passing between the base plate and the cover.

    摘要翻译: 一种用于计算机系统的硬盘驱动器,包括具有直径约为1/8至1/8英寸的盘片的磁头盘组件,其能够存储40多兆字节。 在一个实施例中,盘的每个数据表面上的数据轨迹以每英寸大约2,558轨道间隔开,并且每个数据轨道每英寸具有约36,000个通量变化。 致动器使用音圈马达在每个盘片表面上定位一对读/写头,以将磁头定位在气缸上。 磁性致动器闩锁附接到致动器上的另一个磁体,并将磁头锁定在盘片的最内部直径处的停放位置。 主轴电机以每分钟约5400转的速度旋转盘片。 具有垫圈表面和凸起唇缘的基板与盖板密封地密封到基板上,使得盘片,致动器,致动器闩锁和主轴马达都被包含在其中。 盖子带有通气过滤器和循环空气过滤器。 基板上的凸起唇缘可防止直接的电气干扰通过基板和盖板之间。

    Magnetic head suspension assembly fabricated with integral load beam and flexure
    4.
    再颁专利
    Magnetic head suspension assembly fabricated with integral load beam and flexure 有权
    磁头悬挂组件采用整体负载梁和弯曲制造

    公开(公告)号:USRE41401E1

    公开(公告)日:2010-06-29

    申请号:US10631993

    申请日:2003-07-30

    IPC分类号: G11B5/48

    CPC分类号: G11B5/4833

    摘要: A magnetic head suspension assembly is fabricated with an integral piece which includes a load beam section, a flexure section, a rear mount section and a leaf spring section between the load beam and rear mount. A tongue extends from the load beam to the flexure and has a down-facing load dimple which contacts the non-air bearing surface of an attached air bearing slider. The flexure includes narrow thin legs adjacent to a cutout that delineates the load beam tongue. The head suspension is characterized by a high first bending mode frequency and low pitch and roll stiffness.

    摘要翻译: 制造磁头悬挂组件,其具有整体件,其包括负载梁部分,挠曲部分,后部安装部分和负载梁和后部安装件之间的板簧部分。 舌头从负载梁延伸到挠曲件并且具有接触附接的空气轴承滑块的非空气支承表面的向下的负载凹坑。 弯曲部分包括与描绘负载梁舌头的切口相邻的窄薄腿。 头部悬挂的特征在于高的第一弯曲模式频率和低的俯仰和侧倾刚度。

    Microporation of human skin for monitoring the concentration of an
analyte
    6.
    发明授权
    Microporation of human skin for monitoring the concentration of an analyte 失效
    用于监测分析物浓度的人皮肤的微孔

    公开(公告)号:US5885211A

    公开(公告)日:1999-03-23

    申请号:US776863

    申请日:1997-09-05

    摘要: A method of enhancing the permeability of the skin to an analyte for diagnostic purposes or to a drug for therapeutic purposes is described utilizing microporation and optionally sonic energy and a chemical enhancer. If selected, the sonic energy may be modulated by means of frequency modulation, amplitude modulation, phase modulation, and/or combinations thereof. Microporation is accomplished by (a) ablating the stratum corneum by localized rapid heating of water such that such water is vaporized, thus eroding the cells; (b) puncturing the stratum corneum with a micro-lancet calibrated to form a micropore of up to about 1000 .mu.m in diameter; (c) ablating the stratum corneum by focusing a tightly focused beam of sonic energy onto the stratum corneum; (d) hydraulically puncturing the stratum corneum with a high pressure jet of fluid to form a micropore of up to about 1000 .mu.m in diameter, or (e) puncturing the stratum corneum with short pulses of electricity to form a micropore of up to about 1000 .mu.m in diameter. A dye with an absorption maximum matched to the wavelength of a pulsed light source can be absorbed into the stratum corneum to concentrate the energy of the pulsed light source and aid in ablation of the stratum corneum. Alternatively, a hot wire can be caused to contact the stratum corneum.

    摘要翻译: PCT No.PCT / US96 / 13865 Sec。 371日期:1997年9月5日 102(e)1997年9月5日PCT PCT 1996年8月29日PCT公布。 公开号WO97 / 07734 日期1997年3月6日利用微孔和任选的声能和化学增强剂描述了增强皮肤对诊断目的的分析物或用于治疗目的的药物的渗透性的方法。 如果选择,则可以通过频率调制,幅度调制,相位调制和/或其组合来调制声能。 通过(a)通过局部快速加热水来消融角质层,使得这种水被蒸发,从而侵蚀细胞来实现微孔化; (b)用经过校准的微型刺血针刺穿角质层以形成直径约达1000微米的微孔; (c)通过将紧密聚焦的声能束聚焦在角质层上来消融角质层; (d)用高压喷射流体水力刺穿角质层以形成直径达约1000μm的微孔,或(e)以短脉冲电穿刺角质层以形成高达约 直径1000亩。 具有与脉冲光源的波长匹配的吸收最大值的染料可以被吸收到角质层中以集中脉冲光源的能量并有助于消除角质层。 或者,可以使热丝接触角质层。

    Attribute compensation for analyte detection and/or continuous monitoring
    7.
    发明授权
    Attribute compensation for analyte detection and/or continuous monitoring 失效
    分析物检测和/或连续监测的属性补偿

    公开(公告)号:US06918874B1

    公开(公告)日:2005-07-19

    申请号:US09786830

    申请日:1999-09-10

    IPC分类号: A61B5/00 A61B10/00 A61B17/00

    摘要: A system and method for detecting a measuring an analyte in a biological fluid of an animal. A harvesting device (10) is provided suitable for positioning on the surface of tissue of an animal to harvest biological fluid therefrom. The harvesting device (10) comprises an analyte sensor (50) positioned to be contacted by the harvested biological fluid and which generates a measurement signal representative of the analyte. At least one attribute sensor (40) is provided to measure an attribute associated with the biological fluid harvesting operation of the harvesting device (10) or the assay of the biological fluid, and which generates an attribute signal representative of the attribute. Adjustments are made to operational parameters of the harvesting device (10) based on the one or more attributes.

    摘要翻译: 一种用于检测测量动物的生物流体中的分析物的系统和方法。 提供了适于定位在动物组织表面以从其收集生物流体的收获装置(10)。 收集装置(10)包括分配物传感器(50),其被定位成与所采集的生物流体接触并产生代表分析物的测量信号。 提供至少一个属性传感器(40)以测量与收获装置(10)的生物流体收集操作或生物流体的测定相关联的属性,并且其生成表示该属性的属性信号。 基于一个或多个属性对收获装置(10)的操作参数进行调整。

    Microporation of human skin for drug delivery and monitoring applications
    8.
    发明授权
    Microporation of human skin for drug delivery and monitoring applications 有权
    人类皮肤微量药物输送和监测应用

    公开(公告)号:US6142939A

    公开(公告)日:2000-11-07

    申请号:US208166

    申请日:1998-12-09

    摘要: A method of enhancing the permeability of the skin to an analyte for diagnostic purposes or to a drug for therapeutic purposes is described utilizing microporation and optionally sonic energy and a chemical enhancer. If selected, the sonic energy may be modulated by means of frequency modulation, amplitude modulation, phase modulation, and/or combinations thereof. Microporation is accomplished by (a) ablating the stratum corneum by localized rapid heating of water such that such water is vaporized, thus eroding the cells; (b) puncturing the stratum corneum with a micro-lancet calibrated to form a micropore of up to about 1000 .mu.m in diameter; (c) ablating the stratum corneum by focusing a tightly focused beam of sonic energy onto the stratum corneum; (d) hydraulically puncturing the stratum corneum with a high pressure jet of fluid to form a micropore of up to about 1000 .mu.m in diameter, or (e) puncturing the stratum corneum with short pulses of electricity to form a micropore of up to about 1000 .mu.m in diameter. A dye with an absorption maximum matched to the wavelength of a pulsed light source can be absorbed into the stratum corneum to concentrate the energy of the pulsed light source and aid in ablation of the stratum corneum. Alternatively, a hot wire can be caused to contact the stratum corneum.

    摘要翻译: 使用微孔和任选的声能和化学增强剂来描述增强皮肤对用于诊断目的的分析物的渗透性或用于治疗目的的药物的方法。 如果选择,则可以通过频率调制,幅度调制,相位调制和/或其组合来调制声能。 通过(a)通过局部快速加热水来消融角质层,使得这种水被蒸发,从而侵蚀细胞来实现微孔化; (b)用经过校准的微型刺血针刺穿角质层以形成直径约达1000微米的微孔; (c)通过将紧密聚焦的声能束聚焦在角质层上来消融角质层; (d)用高压喷射流体水力刺穿角质层以形成直径达约1000μm的微孔,或(e)以短脉冲电穿刺角质层以形成高达约 直径1000亩。 具有与脉冲光源的波长匹配的吸收最大值的染料可以被吸收到角质层中以集中脉冲光源的能量并有助于消除角质层。 或者,可以使热丝接触角质层。

    Load beam having tuned resonance mode performance for supporting a
read/write head
    9.
    发明授权
    Load beam having tuned resonance mode performance for supporting a read/write head 失效
    具有调谐谐振模式性能的负载光束用于支持读/写头

    公开(公告)号:US5657187A

    公开(公告)日:1997-08-12

    申请号:US567622

    申请日:1995-12-05

    IPC分类号: G11B5/60 G11B5/48 G11B21/21

    摘要: An optimized bump and offset along the spring section of a load beam of a head-gimbal assembly ("HGA") in the loaded state redistributes the mass and stiffness distributions of the load beam from a truly flat state, so that the mode shape of the first torsional resonance mode is changed such that the coupling between a drive actuator head arm and the head slider is essentially eliminated. A fabrication method to produce the desired bump and offset, and a characterization method to ascertain that optimized bump and offset parameters have been achieved are also disclosed. By optimizing bump and offset, the slider remains independent from any load beam first torsional vibration even at resonance and/or sway mode resonant frequency of the HGA may be increased.

    摘要翻译: 在负载状态下,头部万向节组件(“HGA”)的负载梁的弹簧部分的优化的凸起和偏移将负载梁的质量和刚度分布从真实平坦状态重新分布,使得模型形状 改变第一扭转共振模式,从而基本上消除了驱动致动器头部臂和头部滑块之间的联接。 还公开了产生所需凸块和偏移的制造方法以及用于确定已经实现优化的凸块和偏移参数的表征方法。 通过优化凸块和偏移,即使在谐振和/或摆动模式下,滑块仍然独立于任何负载梁的第一扭转振动,HGA的谐振频率可能会增加。

    Self-contained hydrodynamic bearing unit and seals
    10.
    发明授权
    Self-contained hydrodynamic bearing unit and seals 失效
    独立的流体动力轴承单元和密封件

    公开(公告)号:US5558445A

    公开(公告)日:1996-09-24

    申请号:US363566

    申请日:1994-12-22

    摘要: A self-contained hydrodynamic bearing unit includes a shaft and a shaft housing defining an opening for receiving the shaft for relative rotation. The shaft and bearing define at least one radial hydrodynamic bearing and an annular thrust bearing, formed as a disk portion extending radially outward of a main cylindrical surface of the shaft which cooperates with an adjacent annular face of the shaft housing. A gap between an outer cylindrical wall of the thrust bearing disk portion and an adjacently facing cylindrical surface of the shaft housing provides a primary annular capillary seal segment. An annular bushing ring extends from the housing radially inwardly to enclose the thrust bearing disk, and cooperates with an adjacent outer face of the thrust bearing disk to provide a secondary containment capillary seal segment. Normally, lubricating liquid is in the bearing unit at the radial hydrodynamic bearing, at the hydrodynamic thrust bearing and in the primary annular capillary seal segment. However, if liquid overflows from, or extends beyond the primary seal segment as by thermal expansion, it is contained in the secondary seal segment and urged to return by centrifugal force to the primary seal segment. A tertiary containment seal may also be provided to prevent escape of liquid to the external ambient.

    摘要翻译: 独立的流体动力轴承单元包括轴和轴壳体,该轴壳体限定用于接收用于相对旋转的轴的开口。 轴和轴承限定至少一个径向流体动力轴承和环形推力轴承,其形成为与轴壳体的相邻环形面协作的轴的主圆柱形表面的径向外侧延伸的盘形部分。 推力轴承盘部分的外圆柱形壁与轴壳体相邻的圆柱形表面之间的间隙提供了一个初级的环形毛细管密封段。 环形衬套环从壳体径向向内延伸以包围止推轴承盘,并且与推力轴承盘的相邻外表面配合以提供第二容纳毛细管密封段。 通常,润滑液体在径向流体动力轴承,流体动力推力轴承和初级环形毛细管密封段中的轴承单元中。 然而,如果液体如通过热膨胀从第一密封段溢出或延伸超过主密封段,则其被包含在次级密封段中并且被迫通过离心力返回到主密封段。 还可以提供三级密封件以防止液体逸出到外部环境中。