DEBRIS REMOVAL SYSTEM FOR DOWNHOLE CLOSURE MECHANISM, AND METHOD THEREOF
    2.
    发明申请
    DEBRIS REMOVAL SYSTEM FOR DOWNHOLE CLOSURE MECHANISM, AND METHOD THEREOF 有权
    用于卧室闭合机构的清除系统及其方法

    公开(公告)号:US20130133893A1

    公开(公告)日:2013-05-30

    申请号:US13307953

    申请日:2011-11-30

    摘要: A debris removal system includes a tubular. A closure mechanism arranged to at least partially close an interior of the tubular. An injector mechanism having an exit arranged downhole of the closure mechanism; wherein debris removing material ejected from the injector mechanism is directable towards the closure mechanism. Also included is a method of removing debris in a downhole tubular.

    摘要翻译: 碎片去除系统包括管状物。 闭合机构,其布置成至少部分地封闭所述管的内部。 一种喷射器机构,其具有设置在所述封闭机构的井下的出口; 其中从所述喷射器机构喷射的碎屑去除材料可朝向所述封闭机构定向。 还包括在井下管中去除碎屑的方法。

    Electrophoretic display device
    4.
    发明授权
    Electrophoretic display device 失效
    电泳显示装置

    公开(公告)号:US4272596A

    公开(公告)日:1981-06-09

    申请号:US44802

    申请日:1979-06-01

    CPC分类号: G02F1/167 G03G17/04

    摘要: An electrophoretic display device which provides high contrast images and a stable suspending fluid is described. A white marking material such as titanium dioxide is suspended in a colloidal dispersion containing black colorant such as colloidal size iron oxide particles known as ferrofluids. Image formation is achieved electrophoretically by selective application of an electric field across the imaging suspension.

    摘要翻译: 描述了提供高对比度图像和稳定悬浮液的电泳显示装置。 将诸如二氧化钛的白色标记材料悬浮在包含黑色着色剂的胶体分散体中,例如称为铁磁流体的胶体尺寸的氧化铁颗粒。 通过选择性地施加跨越成像悬浮液的电场,电泳地实现图像形成。

    FLAPPER VALVE
    5.
    发明申请
    FLAPPER VALVE 有权
    翻盖阀

    公开(公告)号:US20160273306A1

    公开(公告)日:2016-09-22

    申请号:US14661702

    申请日:2015-03-18

    IPC分类号: E21B34/10

    CPC分类号: E21B34/06 E21B2034/005

    摘要: A flapper valve includes a valve body having a hinge member. A flapper is pivotally mounted to the valve body through the hinge member. At least one of the valve body and the flapper includes a multi-stage valve seat. The multi-stage valve seat includes a first sealing zone and a second sealing zone that is distinct from the first sealing zone. The first sealing zone is configured to provide pressure containment at the valve body when the flapper is exposed to a first pressure and the second sealing zone is configured to provide pressure containment at the valve body when the flapper is exposed to a second pressure that is greater than the first pressure.

    摘要翻译: 挡板阀包括具有铰链构件的阀体。 挡板通过铰链构件枢转地安装到阀体。 阀体和挡板中的至少一个包括多级阀座。 多级阀座包括与第一密封区不同的第一密封区和第二密封区。 第一密封区被配置为当挡板暴露于第一压力时在阀体处提供压力容纳,并且第二密封区被构造成当挡板暴露于更大的第二压力时在阀体处提供压力容纳 比第一个压力。

    Electrophotochemical preparation of selenium photoconductive members
    8.
    发明授权
    Electrophotochemical preparation of selenium photoconductive members 失效
    硒光敏元件的电化学制备

    公开(公告)号:US4075013A

    公开(公告)日:1978-02-21

    申请号:US722914

    申请日:1976-09-13

    IPC分类号: G03G5/043 G03G5/04

    CPC分类号: G03G5/043 G03G5/0436

    摘要: A method for forming an electrophotographic imaging member comprising electrochemically depositing amorphous selenium on a conductive substrate while simultaneously illuminating the substrate with electromagnetic radiation through a periodic spatial light modulating means. The deposited selenium layer has a periodically varying thickness. The selenium layer is then overcoated with a layer of a charge carrier transport material which is capable of transporting at least one species of charge carrier. The resulting imaging member has extended range and solid area reproduction capability.

    摘要翻译: 一种用于形成电子照相成像构件的方法,包括在导电衬底上电化学沉积非晶硒,同时通过周期性空间光调制装置用电磁辐射照射衬底。 沉积的硒层具有周期性变化的厚度。 然后用能够运送至少一种电荷载体的电荷载体输送材料层覆盖硒层。 所得到的成像构件具有扩展的范围和固体区域再现能力。

    Curved flapper seal with stepped intermediate surface
    9.
    发明授权
    Curved flapper seal with stepped intermediate surface 有权
    弯曲的挡板密封带有阶​​梯式中间表面

    公开(公告)号:US09068661B2

    公开(公告)日:2015-06-30

    申请号:US13490073

    申请日:2012-06-06

    摘要: A recess is provided at the periphery of the flapper so that a corner that defines this recess engages an o-ring seal in a seat for the flapper. A reduced contact area of the flapper on the o-ring seal results in increased pressure over the actual contact area. The pressure applied over the contact area also forces a distortion in the o-ring that has a part of the o-ring not restrained due to the presence of the recess moving out of the surrounding o-ring groove so that the corner on the flapper pinches the o-ring that now is partly in and partly extending from its surrounding groove. Sealing is obtained at lower differential pressures and the o-ring is better fixated as a result of the pinch effect of the corner on the flapper.

    摘要翻译: 在挡板的周边处设置有凹部,使得限定该凹部的角部与用于挡板的座中的O形环密封接合。 挡板在O形圈密封圈上的减小的接触面积导致在实际接触面积上的压力增加。 施加在接触区域上的压力也会导致O形环中的变形,O形环的一部分由于存在从周围的O形环凹槽移出而不被限制,使得挡板上的角部 夹住现在部分位于其中并部分地从其周围的凹槽延伸的O形环。 在较低的压差下获得密封,并且由于拐角在挡板上的夹紧效应,O形环更好地固定。