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    • 92. 发明授权
    • CLOSED LOOP FLUID-HANDLING SYSTEM FOR USE DURING DRILLING OF WELLBORES
    • 系统冲洗处理闭合回路FOR USE IN水井钻探
    • EP0897454B1
    • 2001-02-28
    • EP97922650.3
    • 1997-05-05
    • BAKER HUGHES INCORPORATED
    • BRADFIELD, David H.CUMMINS, David P. J.BRIDGER, Philip J.
    • E21B21/06E21B21/14
    • E21B21/06E21B21/14E21B44/00E21B2021/006
    • This invention provides a fluid-handling system for use in underbalanced drilling operations. The system includes a first vessel which acts as a four phase separator. The first vessel includes a first stage for separating solids. Oil and gas are separated at a second stage. A pressure sensor provides signals to a pressure controller, which modulates a gas flow valve coupled to the vessel for discharging gas from the first vessel. The pressure controller maintains the pressure in the first vessel at a predetermined value. An oil level sensor placed in the first vessel provides a signal to an oil level controller. The oil level controller modulates an oil flow valve coupled to the vessel to discharge oil from the first vessel into a second vessel. Water is discharged into a third vessel. Water from the third vessel is discharged via a water flow control valve, which is modulated by a level controller as a function of the water level in the third vessel. Any gas in the third vessel is discharged by modulating a gas control valve as a function of the pressure in the third vessel. In an alternative embodiment, a central control unit or circuit is utilized to control the operations of all the flow valves. During operations, a control unit maintains the pressure and the levels of the fluids in such vessels at their respective predetermined values according to programmed instructions. The fluid-handling system also controls the wellbore pressure as a function of downhole-measured parameters and the drilling fluid mix as a function of selected operating parameters.
    • 93. 发明公开
    • Water purification apparatus and method thereof
    • Verfahren und Vorrichtung zur Wasserreinigung
    • EP1041042A1
    • 2000-10-04
    • EP99110418.3
    • 1999-05-28
    • Hitachi, Ltd.
    • Tanaka, TetsuyaTsuzuki, Koichi
    • C02F1/72
    • C02F1/725C02F1/32C02F1/722C02F1/78C02F2101/363C02F2305/10Y02W10/37
    • A water purification apparatus for purifying an organic matter(s) contained in raw water by oxidization thereof with use of a catalyst, in particular photo-catalyst, such as titanium dioxide, comprising:

      an oxidization processing reservoir (1, 12) for reserving the raw water, into which is added an inorganic coagulant and is dispersed with particles of the catalyst;
      a light source (2) for emitting ultraviolet ray lights inside the oxidization processing reservoir so as to activate the catalyst;
      a separation reservoir (8, 12) for separating from the raw water the catalyst particle by condensing with electrochemical function of the inorganic coagulant; and
      a pH adjuster(s) (11, 6) for maintaining the catalyst particles dispersed in the raw water within the oxidization processing reservoir to be equal to or less than 0.1 mm in diameter thereof.
    • 一种用于通过使用催化剂,特别是诸如二氧化钛的光催化剂氧化来净化原水中的有机物的净水装置,其特征在于,包括:氧化处理储存器(1,12),用于保留 原水,向其中加入无机凝结剂并用催化剂的颗粒分散; 用于在所述氧化处理容器内部发射紫外线光以使所述催化剂活化的光源(2); 用于通过与无机凝结剂的电化学功能冷凝而将原料水与催化剂颗粒分离的分离容器(8,12) 以及用于将分散在氧化处理容器内的原水中的催化剂颗粒保持直径等于或小于0.1mm的pH调节剂(11,6)。
    • 98. 发明公开
    • Edge coated soft gasket
    • 魏斯科夫
    • EP0964189A2
    • 1999-12-15
    • EP99111156.8
    • 1999-06-08
    • Armstrong World Industries, Inc.
    • Dempsey, Dennis M.Morris, Christopher L.
    • F16J15/10
    • F16J15/123F16J15/104
    • A soft gasket material having two opposed facial surfaces and an edge that is substantially perpendicular to those surfaces has a coating on the edge. The coating has a thickness length B which is a distance extending directly from the edge at its center point to the coat's outer surface. The coating further covers the edge from side to side and extends past at least one corner of the edge in a protruding length A which is an amount that is effective to form a barrier against the passage of fluids onto the face of the gasket. In coatings where the protruding length A is not supported by the gasket face, the ratio of protruding length A : thickness length B must be at least about 0.8, protruding length A must be a minimum of at least about 0.1 mm (4 mils), and thickness length B must be a minimum of at least about 0.08 mm (3 mils). In coatings where the protruding length A is supported by the gasket face (a distance C), the ratio of protruding length A : thickness length B can be at least about 0.6, protruding length A can be a minimum of at least about 0.08 mm (3 mils), and thickness length B can be a minimum of at least about 0.06 mm (2 mils).
    • 具有两个相对的面部表面和基本垂直于这些表面的边缘的软垫材料在边缘上具有涂层。 该涂层的厚度长度B是从中心点的边缘直接延伸到外套的外表面的距离。 涂层进一步从一侧到另一侧覆盖边缘,并且以突出长度A延伸穿过边缘的至少一个拐角,该突出长度A是有效形成阻挡液体流过垫圈表面的屏障的量。 在其中突出长度A不被垫圈面支撑的涂层中,突出长度A:厚度长度B的比率必须至少为0.8,突出长度A必须至少为至少约0.1mm(4密耳), 并且厚度长度B必须至少为至少约0.08mm(3密耳)。 在其中突出长度A由垫圈面(距离C)支撑的涂层中,突出长度A:厚度长度B的比可以至少为约0.6,突出长度A可以是至少约0.08mm的最小值 3密耳),并且厚度长度B可以是至少约0.06mm(2密耳)的最小值。