Process for the preparation of fluid loss additive and gel breaker
    2.
    发明授权
    Process for the preparation of fluid loss additive and gel breaker 失效
    流体损失添加剂和凝胶破碎剂的制备方法

    公开(公告)号:US4986355A

    公开(公告)日:1991-01-22

    申请号:US353947

    申请日:1989-05-18

    IPC分类号: C09K8/508 C09K8/62

    摘要: A melted polymer of hydroxyacetic acid with itself or with other hydroxy-, carboxylic acid-, or hydroxycarboxylic acid-containing moieties is subjected to high shear and injected into an organic liquid which is inert to the polymer to form an organic liquid dispersion of very fine polymer particles. In one aspect the melted polymer is combined with the organic liquid and the combination is thereafter subjected to high shear to form the fine particle polymer dispersion. A dispersion agent may also be used to aid in dispersing the particles. The dispersion is used for fluid loss control and gel breaking in subterranean formations.

    摘要翻译: 将羟基乙酸与其本身或与其它含羟基,羧酸或羟基羧酸的部分熔融的聚合物经受高剪切并注入到对聚合物惰性的有机液体中以形成非常细的有机液体分散体 聚合物颗粒。 在一个方面,将熔融的聚合物与有机液体结合,然后将组合物进行高剪切以形成细颗粒聚合物分散体。 也可以使用分散剂来帮助分散颗粒。 分散体用于地下地层中的流体损失控制和凝胶破坏。

    Implantable joint prosthesis
    4.
    发明授权
    Implantable joint prosthesis 有权
    植入式关节假体

    公开(公告)号:US08092542B2

    公开(公告)日:2012-01-10

    申请号:US12624160

    申请日:2009-11-23

    IPC分类号: A61F2/44 A61F2/28

    摘要: The invention relates to a surgical implant that provides an artificial diarthroidal-like joint, suitable for use in replacing any joint, but particularly suitable for use as an intervertebral disc endoprosthesis. The invention contains two rigid opposing shells, each having an outer surface adapted to engage the surfaces of the bones of a joint in such a way that the shells are immobilized by friction between their outer surfaces and the surfaces of the bone. These outer surfaces are sufficiently rough that large frictional forces strongly resist any slippage between the outer surface and the bone surfaces in the joint. They may be convex, and when inserted into a milled concavity, are immediately mechanically stable. Desirably, the outer surfaces of the shells are adapted to allow for bony ingrowth, which further stabilizes the shells in place. The inner surfaces of the shells are relatively smooth, and adapted to slide easily across a portion of the outer surface of a central body disposed between the shells. The central body has a shape that cooperates with the shape of the inner surface of the shell so as to provide a range of motion similar to that provided by a healthy joint. A flexible sheath extends between edges of the opposing shells. The inner surface of this sheath, together with the inner surfaces of the rigid shells, defines a cavity encasing the central body. At least a portion of this cavity is filled with a fluid lubricant, further decreasing the frictional force between inner surfaces of the shell and the surface of the central body.

    摘要翻译: 本发明涉及一种手术植入物,其提供适于用于替换任何关节,但特别适合用作椎间盘内假体的人造骨关节样关节。 本发明包含两个刚性的相对的壳,每个具有外表面,该外表面适合于接合骨头的表面,使得外壳通过其外表面和骨表面之间的摩擦固定。 这些外表面足够粗糙,使得大的摩擦力强烈地抵抗接合处的外表面和骨表面之间的任何滑动。 它们可以是凸形的,并且当插入铣削凹部时,它们立即机械地稳定。 理想地,壳的外表面适于允许骨向内生长,这进一步将壳稳定在适当位置。 壳的内表面相对平滑,并且适于容易地滑过设置在壳之间的中心体的外表面的一部分。 中心体具有与壳的内表面的形状配合的形状,以提供类似于由健康关节提供的运动范围。 柔性护套在相对的壳的边缘之间延伸。 该护套的内表面与刚性外壳的内表面一起限定了一个包围中心体的空腔。 该空腔的至少一部分填充有流体润滑剂,进一步降低了壳的内表面与中心体的表面之间的摩擦力。

    Aerial refueling device
    5.
    发明授权
    Aerial refueling device 失效
    空中加油装置

    公开(公告)号:US4126162A

    公开(公告)日:1978-11-21

    申请号:US803901

    申请日:1977-06-06

    IPC分类号: B64D39/06 B65B3/04

    CPC分类号: B64D39/06

    摘要: A device for opening a door on an airplane to expose a refueling receptacle having latches for connection to a fueling nozzle deployed from a tanker airplane so that the airplane may be refueled in flight. The device has a hydraulic actuator for opening and closing the door, first valve means for controlling the first actuator, a second valve means for controlling another hydraulic actuator that locks and releases the latches, a spring for opening the door when there is a failure in the supply of pressure fluid for the first actuator, and a means to prevent closing of the door before the latches are released from the nozzle.

    摘要翻译: 一种用于在飞机上打开门的装置,以暴露具有闩锁的加油插座,用于连接到从油罐飞机部署的加燃料喷嘴,使得飞机可以在飞行中加油。 该装置具有用于打开和关闭门的液压致动器,用于控制第一致动器的第一阀装置,用于控制锁定和释放闩锁的另一液压致动器的第二阀装置,当出现故障时用于打开门的弹簧 供应第一致动器的压力流体,以及在闩锁从喷嘴释放之前防止门关闭的装置。

    IMPLANTABLE JOINT PROSTHESIS
    6.
    发明申请
    IMPLANTABLE JOINT PROSTHESIS 审中-公开
    可植入的联系

    公开(公告)号:US20110295374A1

    公开(公告)日:2011-12-01

    申请号:US13204187

    申请日:2011-08-05

    IPC分类号: A61F2/44

    摘要: The invention relates to a surgical implant that provides an artificial diarthroidal-like joint, suitable for use in replacing any joint, but particularly suitable for use as an intervertebral disc endoprosthesis. The invention contains two rigid opposing shells, each having an outer surface adapted to engage the surfaces of the bones of a joint in such a way that the shells are immobilized by friction between their outer surfaces and the surfaces of the bone. These outer surfaces are sufficiently rough that large frictional forces strongly resist any slippage between the outer surface and the bone surfaces in the joint. They may be convex, and when inserted into a milled concavity, are immediately mechanically stable. Desirably, the outer surfaces of the shells are adapted to allow for bony ingrowth, which further stabilizes the shells in place. The inner surfaces of the shells are relatively smooth, and adapted to slide easily across a portion of the outer surface of a central body disposed between the shells. The central body has a shape that cooperates with the shape of the inner surface of the shell so as to provide a range of motion similar to that provided by a healthy joint. A flexible sheath extends between edges of the opposing shells. The inner surface of this sheath, together with the inner surfaces of the rigid shells, defines a cavity encasing the central body. At least a portion of this cavity is filled with a fluid lubricant, further decreasing the frictional force between inner surfaces of the shell and the surface of the central body.

    摘要翻译: 本发明涉及一种手术植入物,其提供适于用于替换任何关节,但特别适合用作椎间盘内假体的人造骨关节样关节。 本发明包含两个刚性的相对的壳,每个具有外表面,该外表面适合于接合骨头的表面,使得外壳通过其外表面和骨表面之间的摩擦固定。 这些外表面足够粗糙,使得大的摩擦力强烈地抵抗接合处的外表面和骨表面之间的任何滑动。 它们可以是凸形的,并且当插入铣削凹部时,它们立即机械地稳定。 理想地,壳的外表面适于允许骨向内生长,这进一步将壳稳定在适当位置。 壳的内表面相对平滑,并且适于容易地滑过设置在壳之间的中心体的外表面的一部分。 中心体具有与壳的内表面的形状配合的形状,以提供类似于由健康关节提供的运动范围。 柔性护套在相对的壳的边缘之间延伸。 该护套的内表面与刚性外壳的内表面一起限定了一个包围中心体的空腔。 该空腔的至少一部分填充有流体润滑剂,进一步降低了壳的内表面与中心体的表面之间的摩擦力。

    Method of transporting viscous hydrocarbons
    8.
    发明授权
    Method of transporting viscous hydrocarbons 失效
    输送粘性烃的方法

    公开(公告)号:US4287902A

    公开(公告)日:1981-09-08

    申请号:US91014

    申请日:1979-11-05

    IPC分类号: F17D1/17

    CPC分类号: F17D1/17 Y10T137/0391

    摘要: An improvement in the method of transporting viscous hydrocarbons through pipes is disclosed. Briefly, the method comprises adding water containing an effective amount of a combination of an alkaryl sulfonate having a molecular weight of 415 to 470 and a C.sub.1 -C.sub.4 alcohol.

    摘要翻译: 公开了通过管道输送粘性烃的方法的改进。 简言之,该方法包括加入含有有效量的分子量为415〜470的烷芳基磺酸盐与C1〜C4醇的水的水。