Headlight enclosure for a monocoque locomotive
    41.
    发明授权
    Headlight enclosure for a monocoque locomotive 失效
    单体机车的大灯外壳

    公开(公告)号:US5839815A

    公开(公告)日:1998-11-24

    申请号:US850464

    申请日:1997-05-05

    摘要: A locomotive assembly having a longitudinally extending platform and attached sidewalls with a frontal nosepiece extending about a front portion of the platform. The locomotive having a connection device for connecting components to hollow supports in the sidewalls without deforming the sidewalls, a bulkhead with an attached portion for preassembly components thereon before insertion between the sidewalls, a window assembly sealingly disposed in an opening within the sidewall and attached to the sidewall to allow limited relative movement without disrupting the seal, an enclosed headlight assembly flush mounted in the nosepiece with air circulation to prevent overheating within the assembly and an integral collision assembly for transferring collision forces to the platform.

    摘要翻译: 一种机车组件,其具有纵向延伸的平台和附接的侧壁,其具有围绕所述平台的前部延伸的前部鼻梁。 所述机车具有用于将部件连接到侧壁中的中空支撑件而不使侧壁变形的连接装置,具有用于在侧壁之间插入之前的用于预组装部件的附接部分的隔板,密封地设置在侧壁内的开口中并连接到侧壁上的窗组件 所述侧壁允许有限的相对运动而不破坏所述密封件;封闭的头灯组件,其安装在所述喷嘴中并具有空气循环以防止所述组件内的过热,以及用于将碰撞力传递到所述平台的整体式碰撞组件。

    Selective delivery of cryogenic energy to intervertebral disc tissue and related methods of intradiscal hypothermia therapy

    公开(公告)号:US07144394B2

    公开(公告)日:2006-12-05

    申请号:US10653692

    申请日:2003-09-02

    申请人: Allen Carl

    发明人: Allen Carl

    IPC分类号: A61B18/18

    摘要: The present invention relates to devices and methods for altering the tissue in and around an intervertebral disc through localized hypothermia therapy to restore function of the disc and reduce pain. Hypothermia therapy is defined as the reduction of tissue temperature to below that of the equilibrium temperature. Target therapeutic temperatures and times are varied according to the desired treatment effect. Intended effects of hypothermia of the intervertebral disc include cellular disruption leading to cell death and or structural and chemical denaturation within the anulus fibrosus, nucleus pulposus, or nerve fibers, temporary or permanent deadening of the nerves within or surrounding the disc, induction of a healing response, angiogenesis, or accelerated degeneration and/or drying of the nucleus pulposus and/or anulus fibrosus. Various effects can be achieved by reaching different temperatures for differing periods of time or by the proximity of the hypothermia therapy device to the treatment target. Accordingly, it is an object of one or more the embodiments of the invention to provide hypothermic therapy to selected locations within an intervertebral disc utilizing a flexible and guidable cryogenic device.

    Methods and apparatus for producing a reference frequency signal with use of a reference frequency quadrupler having frequency selection controls
    46.
    发明授权
    Methods and apparatus for producing a reference frequency signal with use of a reference frequency quadrupler having frequency selection controls 有权
    使用具有频率选择控制的参考频率四倍频器来产生参考频率信号的方法和装置

    公开(公告)号:US06538520B1

    公开(公告)日:2003-03-25

    申请号:US09982156

    申请日:2001-10-18

    IPC分类号: H03B1900

    摘要: Circuitry for a phase locked loop (PLL) includes a first frequency doubler; a first equalizer having an input coupled to an output of the first frequency doubler; a second frequency doubler having an input coupled to an output of the first equalizer; and a second equalizer having an input coupled to an output of the second frequency doubler and an output which is fed into the PLL. Each frequency doubler includes a first delay circuit having an input coupled to the input of the frequency doubler; and an XOR circuit having a first input coupled to an output of the delay circuit and a second input coupled to the input of the frequency doubler. The combination of the two frequency doublers in series quadruples the reference signal into the PLL, which allows the, PLL to have a smaller feedback divider ratio and a higher loop gain for reducing jitter. Advantageously, controls for the selection of the initial reference signal are provided.

    摘要翻译: 锁相环(PLL)的电路包括第一倍频器; 第一均衡器,具有耦合到第一倍频器的输出的输入; 第二倍频器,具有耦合到所述第一均衡器的输出的输入; 以及第二均衡器,其具有耦合到第二倍频器的输出的输入和馈送到PLL的输出。 每个倍频器包括具有耦合到倍频器的输入的输入的第一延迟电路; 以及具有耦合到延迟电路的输出的第一输入和耦合到倍频器的输入的第二输入的XOR电路。 两个频率倍增器的组合将参考信号串联四倍于PLL,这允许PLL具有较小的反馈分频比和较高的环路增益,以减少抖动。 有利地,提供了用于选择初始参考信号的控制。

    High frequency CMOS clock recovery circuit
    47.
    发明授权
    High frequency CMOS clock recovery circuit 有权
    高频CMOS时钟恢复电路

    公开(公告)号:US6121804A

    公开(公告)日:2000-09-19

    申请号:US140840

    申请日:1998-08-27

    摘要: A complementary metal-oxide semiconductor (CMOS) integrated circuit that includes a clock recovery circuit. The clock recovery circuit automatically properly aligns a clock with data. A latch is used to perform the function of a flip-flop. Because the flip flop is essentially two latches, using the latch rather than the flip flop results in a circuit having one less latch. Consequently, the circuit has less propagation delay, which permits higher frequency operation. Use of the latch also reduces the load on the clock and saves power. Additionally, the clock recovery circuit uses differential logic, which decreases noise sensitivity and allows higher frequency operation.

    摘要翻译: 一种互补金属氧化物半导体(CMOS)集成电路,其包括时钟恢复电路。 时钟恢复电路自动将时钟与数据正确对齐。 锁存器用于执行触发器的功能。 因为触发器本质上是两个锁存器,所以使用锁存器而不是触发器导致具有少一个锁存器的电路。 因此,电路具有较少的传播延迟,这允许更高频率的操作。 使用锁存器还可以减少时钟上的负载并节省电力。 此外,时钟恢复电路使用差分逻辑,这降低了噪声灵敏度,并允许更高频率的操作。

    Shape memory alloy internal linear actuator for use in orthopedic
correction
    48.
    发明授权
    Shape memory alloy internal linear actuator for use in orthopedic correction 失效
    形状记忆合金内部线性执行器,用于矫形矫正

    公开(公告)号:US5575790A

    公开(公告)日:1996-11-19

    申请号:US440304

    申请日:1995-03-28

    摘要: An implantable linear actuator device for use in orthopedic correction procedures, the device comprising a housing including a first tubular portion and a second tubular portion, the second tubular portion slidably received in telescoping relationship within the first tubular portion; and a drive mechanism secured within the housing and connected between the first and second tubular portions, the drive mechanism including a main screw shaft rotatably journalled at one end in the first tubular portion and threadably connected at an opposite end to the second tubular portion; a one-way rotatable clutch engageable with the main screw shaft such that rotation of the clutch in one direction will effect rotation of the main screw shaft in the one direction but rotation of the clutch in an opposite direction will not rotate the main screw shaft; and a shape memory alloy component fixed between the clutch and the first tubular portion such that, upon application of heat, the component causes the clutch and the screw shaft to rotate in the one direction.

    摘要翻译: 一种用于矫形矫正程序的可植入线性致动器装置,所述装置包括壳体,所述壳体包括第一管状部分和第二管状部分,所述第二管状部分以可伸缩的关系可滑动地容纳在所述第一管状部分内; 以及固定在所述壳体内且连接在所述第一和第二管状部分之间的驱动机构,所述驱动机构包括主轴螺纹轴,所述主螺杆轴可旋转地安装在所述第一管状部分的一端并且在相对端与所述第二管状部分螺纹连接; 与主螺杆轴接合的单向旋转离合器,使得离合器沿一个方向的旋转将实现主螺杆轴沿一个方向的旋转,但是离合器沿相反方向的旋转将不会使主螺杆轴旋转; 以及固定在离合器和第一管状部分之间的形状记忆合金部件,使得在施加热量时,部件使离合器和螺杆轴沿一个方向旋转。