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    • 91. 发明申请
    • Drill string rotation encoding
    • 钻柱旋转编码
    • US20050001737A1
    • 2005-01-06
    • US10882789
    • 2004-07-01
    • Emilio BaronStephen Jones
    • Emilio BaronStephen Jones
    • E21B47/12G01V11/00G01V3/00
    • E21B47/12G01V11/002
    • A method for communicating with a downhole device is provided. The method includes predefining an encoding language including codes understandable to the device, the codes represented in the language as predefined value combinations of drill string rotation variables such as rotation rate or duration. The method further includes rotating a drill string at first and second rates and measuring the rotation rates downhole. The first measured rotation rate is processed downhole in combination with the second measured rotation rate to acquire a code in the language at the downhole device. Embodiments of the invention are useful, for example, for transmitting commands from the surface to a downhole device such as a directional drilling tool. Exemplary embodiments of this invention advantageously provide for quick and accurate communication with a downhole device without substantially interrupting the drilling process.
    • 提供了一种与井下装置通信的方法。 该方法包括预定义包括对设备可理解的代码的编码语言,以语言表示的代码作为钻柱旋转变量(例如旋转速率或持续时间)的预定义值组合。 该方法还包括以第一和第二速率旋转钻柱并测量井下旋转速率。 第一测量的旋转速率与第二测量的旋转速率结合在井下,以获得井下装置中的语言的代码。 本发明的实施例例如用于将命令从表面传送到诸如定向钻具的井下装置是有用的。 本发明的示例性实施例有利地提供与井下装置的快速和准确的通信,而基本上不中断钻孔过程。
    • 92. 发明授权
    • Pulsed fiber laser cutting system for medical implants
    • 用于医疗植入物的脉冲光纤激光切割系统
    • US06521865B1
    • 2003-02-18
    • US09882590
    • 2001-06-14
    • Stephen JonesKlaus KleineBrad Whitney
    • Stephen JonesKlaus KleineBrad Whitney
    • B23K2638
    • B23K26/142A61F2/91B23K26/1438B23K26/146B23K26/1476B23K26/16B23K26/38B23K2101/06B23K2103/05B23K2103/42B23K2103/50
    • An improved expandable stent for implantation in a body lumen, such as an artery, and an improved method for making it from a single length of tubing. The stent consists of a plurality of radially expandable cut cylindrical elements generally aligned on a common axis and interconnected by one or more interconnective elements, the elements having a rectangular cross-section from cut-to-cut. The individual radially expandable cylindrical elements are disposed in an undulating pattern. The stent is manufactured by direct laser cutting from a single metal tube using a finely focused laser beam originating from a diode pumped fiber laser with an external pulse generator and passing through a coaxial gas jet structure to impinge on the working surface of the tube as the linear and rotary velocity of the tube is precisely controlled.
    • 用于植入体腔(例如动脉)中的改进的可扩张支架,以及用于使其从单一管道制成的改进方法。 支架由多个径向可膨胀的切割的圆柱形元件组成,其大体上在公共轴线上对齐并由一个或多个互连元件互连,所述元件具有从切割到切割的矩形横截面。 各个可径向扩张的圆柱形元件以波形图案设置。 支架通过使用来自具有外部脉冲发生器的二极管泵浦光纤激光器的精细聚焦激光束从单个金属管直接激光切割制造,并且穿过同轴气体射流结构以撞击管的工作表面 管的线性和旋转速度被精确控制。