Wellbore tubular patch system
    42.
    发明授权
    Wellbore tubular patch system 有权
    井筒管状贴片系统

    公开(公告)号:US6142230A

    公开(公告)日:2000-11-07

    申请号:US183943

    申请日:1998-10-31

    摘要: A wellbore tubular patch for patching a hole in a wellbore has been invented, the tubular patch in certain aspects having an expandable top member having a hollow tubular body and a top end and a bottom end, an expandable bottom member having a hollow tubular body and a top end and a bottom end, an expandable outer sleeve in which is secured a portion of the bottom end of the expandable top member, and a portion of the top end of the expandable bottom member inserted into and held within expandable outer sleeve. A method for making a tubular patch for patching a hole in a tubular in an earth wellbore has been invented, the method in certain aspects including securing a portion of a bottom end of an expandable top member in an expandable outer sleeve, the expandable top member having a hollow tubular body and a top end, and securing a portion of a top end of an expandable bottom member within the expandable outer sleeve, the expandable bottom emmber having a hollow tubular body.

    摘要翻译: 已经发明了用于在井眼中修补孔的井眼管状补片,在某些方面,管状贴片具有具有中空管状体的可膨胀顶部构件,以及顶端和底端,具有中空管状体的可扩张底部构件, 顶端和底端,可扩张的外套筒,其中固定可膨胀顶部构件的底端的一部分,以及可扩张底部构件的顶端的一部分插入并保持在可膨胀的外套筒内。 已经发明了一种用于制造用于在地球井筒中的管状孔中修补孔的管状补片的方法,该方法在某些方面包括将可膨胀顶部构件的底端的一部分固定在可膨胀外套筒中, 具有中空的管状体和顶端,并且将可扩展底部构件的顶端的一部分固定在可扩张的外套筒内,所述可膨胀底部具有中空的管状体。

    1,2,4-oxadiazolyl-phenoxyalkylisoxazoles and their use as antiviral
agents
    43.
    发明授权
    1,2,4-oxadiazolyl-phenoxyalkylisoxazoles and their use as antiviral agents 失效
    1,2,4-恶二唑基 - 苯氧基烷基异恶唑及其作为抗病毒剂的用途

    公开(公告)号:US5175178A

    公开(公告)日:1992-12-29

    申请号:US532480

    申请日:1990-06-04

    摘要: Compounds of the formulas ##STR1## wherein: Y is an alkylene bridge of 3-9 carbon atoms;R' is lower-alkyl or hydroxy-lower-alkyl of 1-5 carbon atoms;R.sub.1 and R.sub.2 are hydrogen, halogen, lower-alkyl, lower-alkoxy, nitro, lower-alkoxycarbonyl or trifluoromethyl; andR.sub.8 is hydrogen or lower-alkyl of 1-5 carbon atoms, with the proviso that when R.sub.8 is hydrogen R' is hydroxy-lower-alkyl,are useful as antiviral agents, particularly against picornaviruses, including numerous strains of rhinovirus.

    摘要翻译: 下式化合物其中:Y是3-9个碳原子的亚烷基桥; R'是1-5个碳原子的低级烷基或羟基 - 低级 - 烷基; R 1和R 2是氢,卤素,低级烷基,低级烷氧基,硝基,低级烷氧基羰基或三氟甲基; 并且R 8为氢或1-5个碳原子的低级烷基,条件是当R 8为氢时R'为羟基 - 低级 - 烷基,可用作抗病毒剂,特别是针对小核糖核酸病毒,包括许多鼻病毒株。

    Valve liner for a knife gate valve
    44.
    发明授权
    Valve liner for a knife gate valve 失效
    用于刀闸阀的阀衬

    公开(公告)号:US4009727A

    公开(公告)日:1977-03-01

    申请号:US623800

    申请日:1975-10-20

    申请人: Thomas R. Bailey

    发明人: Thomas R. Bailey

    IPC分类号: F16K3/02

    CPC分类号: F16K3/0281 Y10T137/7504

    摘要: A replaceable valve liner for valves of the knife gate type includes a main body liner member of a generally cylindrical configuration adapted to be positioned in the flow passage through the valve and having a circular radially outwardly directed positioning flange at one end adapted to abut one side of the valve housing when so positioned. A removable ring flange is adapted to be positioned on the main body liner member at the opposite end from the positioning flange and is similarly adapted to abut the housing on an opposite side thereof. A slide gate liner member in the configuration of a flattened sleeve has a slot therethrough in which the slide gate of the valve is slideably received. The slide gate liner member has a fragmented circular notch formed in one end so that it can be seated on an outer surface of the main body liner member in alignment with a slot through the main body liner member such that the slide gate can be moved between a closed position in which it blocks the flow passage through the valve and an open position retracted into the slide gate liner member. The valve liner is preferably made of a material such as polyurethane having long-wearing characteristics and having the ability to form fluid-tight seals with the valve and adjacent fluid flow conduits connected to the valve.

    摘要翻译: 用于刀门型阀的可更换阀衬套包括大致圆柱形构造的主体衬套构件,其适于定位在通过阀的流动通道中并且在一端具有适于邻接一侧的圆形径向向外定位凸缘 的位置。 可拆卸的环形凸缘适于在与定位凸缘相对的端部处定位在主体衬里构件上,并且类似地适于在其相对侧上抵靠壳体。 扁平套筒结构中的滑动闸门衬套件具有一个槽,其中可滑动地容纳阀的滑动门。 滑动门衬垫构件具有形成在一端的分段圆形凹口,使得其可以位于主体衬里构件的外表面上,与通过主体衬里构件的狭槽对准,使得滑动门可以在 关闭位置,其中阻塞通过阀的流动通道和缩回到滑动门衬套构件的打开位置。 阀衬套优选由诸如聚氨酯的材料制成,具有长的耐磨特性,并且能够与阀和与阀连接的相邻的流体流动导管形成流体密封。