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    • 22. 发明授权
    • Swimming device
    • 游泳装置
    • US09415289B1
    • 2016-08-16
    • US13844959
    • 2013-03-16
    • Vassallo Underwater LLC
    • Jesus D. Vassallo
    • A63B31/00A63B69/12A63B31/10
    • A63B69/12A63B31/00A63B31/10A63B2209/00
    • A device made of an elastomeric material formed in a circular or elliptical or oval shape having an exterior surface and an interior surface and a non-uniform thickness, with opposing ends having a decreased thickness. The interior surface may include one or more slip resistant elements. The exterior of the device may also include at least one slip resistant element as well as one or more artistic or design elements or overlays. The device is lightweight and may be made more buoyant with one or more air pockets or air spaces located between the exterior and the interior surfaces and walls forming the surfaces. In operation, one or more devices are removably and adjustably positioned around an extremity portion of a person, such as both ankles, both feet, both calves, both knees, both thighs, both hands, both wrists, both lower arms, both upper arms, or both elbows.
    • 由弹性体材料制成的装置,其形成为具有外表面和内表面以及不均匀厚度的圆形或椭圆形或椭圆形形状,其相对端具有减小的厚度。 内表面可以包括一个或多个防滑元件。 装置的外部还可以包括至少一个防滑元件以及一个或多个艺术或设计元件或覆盖物。 该装置是轻质的并且可以通过位于外表面和内表面之间的一个或多个气穴或空气空间和形成表面的壁而变得更加浮力。 在操作中,一个或多个装置可移动地和可调节地定位在人的肢体部分周围,例如脚踝,双脚,两头小腿,两膝,大腿,双手,两只手腕,两个​​下臂,两个上臂 ,或两个肘部。
    • 23. 发明授权
    • Selective fracturing tool
    • 选择压裂工具
    • US08727010B2
    • 2014-05-20
    • US13557438
    • 2012-07-25
    • Don TurnerSean CampbellGrant George
    • Don TurnerSean CampbellGrant George
    • E21B34/14
    • E21B34/14E21B43/14E21B43/26
    • A tool for selectively treating a wellbore with fluid that includes a tubing string having a sidewall defining an inner bore, the sidewall comprising a flow area having at least one fluid flow port that permits fluid flow through the sidewall. Fluid is prevented from flowing through the flow area when a closure is in a closed position. When in the open position, fluid flows through the flow area. An axial seal is connected to the closure to selectively close the inner bore against fluid pressure to apply the predetermined opening force to move the closure to the open position. A releasable connector connects the axial seal to the closure and a retrieval tool attachment releases the axial seal from the closure upon application of a predetermined release force by a retrieval tool.
    • 一种用于用流体选择性地处理井筒的工具,其包括具有限定内孔的侧壁的管柱,所述侧壁包括具有允许流体流过所述侧壁的至少一个流体流动端口的流动区域。 当封闭件处于关闭位置时,防止流体流过流动区域。 当处于打开位置时,流体流过流动区域。 轴向密封件连接到封闭件以选择性地关闭内孔以抵抗流体压力以施加预定的打开力以将封闭件移动到打开位置。 可释放的连接器将轴向密封件连接到封闭件,并且拾取工具附件在通过检索工具施加预定释放力时将封闭件的轴向密封件释放。
    • 24. 发明授权
    • Coiled tubing injector with strain relief
    • 带应力消除的卷管式注油器
    • US08701754B2
    • 2014-04-22
    • US13775059
    • 2013-02-22
    • David W. McCulloch
    • David W. McCulloch
    • E21B19/22E21B19/00
    • E21B19/22B66D3/003
    • A coiled tubing injector, rollers on the backside of grippers on a gripper chain pass over at least one shallow groove or depression formed in, or gap between segments of, a planar roller contact surface of a skate, thereby momentarily removing or reducing the force being applied by the skate to the grippers as the grippers pass through at least one predetermined location within a gripping zone of the coiled tubing injector. The reduction or removal of the force on the grippers allows the grippers to reset their positions on the tubing at one or more predetermined locations in order to accommodate changes in the strain caused by changes in stress as the tubing moves through the injector.
    • 连续油管注射器,夹持器链上的夹持器背面的辊通过形成在滑冰板的平面辊接触表面中的至少一个浅槽或凹陷处,或者间隙地滑动,从而瞬间去除或减小力 当夹具穿过连续油管注射器的夹紧区域内的至少一个预定位置时,该滑板由滑板施加到夹具。 夹持器上的力的减少或去除允许夹具在一个或多个预定位置处重新设置在管道上的位置,以便适应当管道移动通过喷射器时由应力变化引起的应变变化。