Methods of fabricating a thin-wall expandable well screen assembly
    63.
    发明授权
    Methods of fabricating a thin-wall expandable well screen assembly 有权
    制造薄壁可膨胀井眼组件的方法

    公开(公告)号:US06415509B1

    公开(公告)日:2002-07-09

    申请号:US09574658

    申请日:2000-05-18

    Abstract: An expandable well screen has a desirable thin-wall construction together with a simplified fabrication method. In fabricating the screen, a flexible sheet of metal mesh filter media is diffusion bonded to an inner side of a perforated metal sheet which is then deformed to a tubular shape to form a filter structure having an outer perforated tubular shroud interiorly lined with the filter media. The tubular filter structure is telescoped onto a perforated base pipe and has its opposite ends sealingly secured thereto to complete the expandable well screen.

    Abstract translation: 可扩展井筛具有理想的薄壁结构以及简化的制造方法。 在制造屏幕时,金属网过滤介质的柔性片被扩散粘合到穿孔金属片的内侧,然后将其变形为管状,以形成具有内部带有过滤介质的外部穿孔管状护罩的过滤器结构 。 管状过滤器结构可伸缩到穿孔的基管上,并且其相对的端部密封地固定到其上以完成可扩张的井网。

    Expansion resistant filter cartridge
    64.
    发明申请
    Expansion resistant filter cartridge 审中-公开
    防爆滤芯

    公开(公告)号:US20020040870A1

    公开(公告)日:2002-04-11

    申请号:US09874134

    申请日:2001-06-05

    Inventor: C. Thomas Paul

    Abstract: Expansion resistant filter cartridge assemblies are provided that facilitate filtering of strong solvent solutions. The filter cartridge assemblies generally include a cylindrical filter element defining an outer periphery, an inner periphery and opposed end surfaces, a perforated cage operatively associated with the outer periphery of the filter element, a perforated core operatively associated with the inner periphery of the filter element and having opposed ends and a predetermined length, and an end cap operatively associated with each of the opposed end surfaces of the filter element and bonded to each end of the core. The perforated cage generally includes an expansion region of about 2.5% to about 4% of the total length of the filter cartridge, e.g., a region of axial discontinuity or a plurality of angular struts, to accommodate swelling and/or dimensional expansion of the cage without adversely affecting the integrity of the filter cartridge assembly. Alternatively, an expandable net material may be provided to accommodate expansion/swelling thereof. The core of the filter cartridge assembly is advantageously fabricated from material(s) that resist swelling/expansion when exposed to strong solvent solutions, e.g., glass filled polypropylene, stainless steel and/or a fluorinated aliphatic hydrocarbon.

    Abstract translation: 提供了防扩散滤芯组件,便于过滤强溶剂溶液。 过滤器滤芯组件通常包括限定外周边,内周边和相对端面的圆柱形过滤器元件,与过滤器元件的外周边可操作地连接的穿孔保持架,与过滤器元件的内周边可操作地连接的多孔芯 并且具有相对的端部和预定长度,以及端盖,其可操作地与过滤元件的相对的端面中的每一个相接合并且接合到芯的每个端部。 穿孔笼通常包括膨胀区域,其为过滤器滤芯总长度的约2.5%至约4%,例如轴向不连续区域或多个角撑杆,以适应笼的膨胀和/或尺寸膨胀 而不会不利地影响滤芯组件的完整性。 或者,可以提供可膨胀网材料以适应其膨胀/膨胀。 过滤器滤芯组件的芯部有利地由暴露于强溶剂溶液(例如玻璃填充的聚丙烯,不锈钢和/或氟化脂族烃)时抵抗溶胀/膨胀的材料制成。

    Pleated filter element
    65.
    发明授权
    Pleated filter element 有权
    褶皱过滤元件

    公开(公告)号:US06315130B1

    公开(公告)日:2001-11-13

    申请号:US09479686

    申请日:2000-01-07

    Inventor: Daniel K. Olsen

    Abstract: A filter element according to the present disclosure includes a plurality of longitudinally extending pleats including outwardly radiating primary pleats and inwardly radiating secondary pleats, with at least one secondary pleat positioned between two adjacent primary pleats. Each primary pleat has a predetermined radial height, and each secondary pleat has a radial height that is less than the radial height of each primary pleat and different from the radial height of at least one other secondary pleat. A filter element according to the present disclosure provides greater filter area, an increased overall filter density, and access to more radial flow paths at the outer diameter of the filter element.

    Abstract translation: 根据本公开的过滤器元件包括多个纵向延伸的褶皱,其包括向外辐射初级褶皱和向内辐射次级褶皱,其中至少一个次级褶皱位于两个相邻的主褶皱之间。 每个初级褶具有预定的径向高度,并且每个次级褶具有小于每个主褶皱的径向高度并且不同于至少一个其它次褶的径向高度的径向高度。 根据本公开的过滤元件提供更大的过滤面积,增加的总体过滤器密度以及在过滤器元件的外径处的更多径向流动路径的通路。

    Fuel circuit with protected main filter
    66.
    发明授权
    Fuel circuit with protected main filter 有权
    带保护主过滤器的燃油回路

    公开(公告)号:US06251270B1

    公开(公告)日:2001-06-26

    申请号:US09481382

    申请日:2000-01-12

    Abstract: A main filter for an airplane fuel circuit or a fuel circuit for any type of mechanism, the filter having a first and second entry, which go directly into a chamber containing a filtering unit, the first entry receiving the fuel at a temperature essentially equal to that of the second entry which receives a hotter fuel which has passed through a heat exchanger. The filter prevents clogging due to ice formation on the filtering unit of the filter or at least inhibits such clogging. A fuel circuit using such a filter is also disclosed.

    Abstract translation: 用于任何类型的机构的用于飞机燃料电路或燃料电路的主过滤器,所述过滤器具有第一和第二入口,其直接进入包含过滤单元的室,所述第一入口在基本等于 接收通过热交换器的较热的燃料的第二入口。 过滤器防止由于过滤器的过滤单元上的冰形成堵塞,或者至少抑制这种堵塞。 还公开了使用这种过滤器的燃料回路。

    Particle control screen assembly for a perforated pipe used in a well, a
sand filter system, and methods of making the same
    67.
    发明授权
    Particle control screen assembly for a perforated pipe used in a well, a sand filter system, and methods of making the same 有权
    用于井中的穿孔管的颗粒控制筛组件,砂过滤器系统及其制造方法

    公开(公告)号:US6109349A

    公开(公告)日:2000-08-29

    申请号:US289691

    申请日:1999-04-09

    Abstract: A particle control screen assembly for a perforated pipe used in a well, a sand filter system, and methods of making same are provided. The screen assembly includes a woven mesh filter media disposed about an inner surface of the perforated pipe, and a protective wrapper disposed about the filter media. The protective wrapper comprises a radially inner perforated layer and a radially outer layer that is disposed between the inner layer and the filter media. A surface of the outer layer that faces the inner perforated layer has a non-smooth contour, with this surface of the outer layer having portions in direct contact with an outer surface of the inner layer. The outer layer is provided with apertures that are disposed in such a way that fluid cannot flow from the inner surface of the inner perforated layer directly radially both through holes of the inner layer and through the apertures of the outer layer.

    Abstract translation: 提供了一种用于井中使用的穿孔管的颗粒控制筛组件,砂过滤器系统及其制造方法。 屏幕组件包括围绕穿孔管的内表面设置的编织网过滤介质和围绕过滤介质布置的保护性包裹物。 保护性包装物包括径向内部穿孔层和设置在内层和过滤介质之间的径向外层。 外层的面向内穿孔层的表面具有非平滑轮廓,外层的该表面具有与内层的外表面直接接触的部分。 外层设置有孔,其设置成使得流体不能从内部穿孔层的内表面直接径向地穿过内层的孔并通过外层的孔径流动。

    Particle control screen assembly for a perforated pipe used in a well, a
sand filter system and methods of making the same
    68.
    发明授权
    Particle control screen assembly for a perforated pipe used in a well, a sand filter system and methods of making the same 失效
    用于井中的穿孔管的颗粒控制筛组件,砂过滤器系统及其制造方法

    公开(公告)号:US5782299A

    公开(公告)日:1998-07-21

    申请号:US694062

    申请日:1996-08-08

    Abstract: A particle control screen assembly for a perforated pipe used in a well, a sand filter system, and methods of making same are provided. The screen assembly includes a woven mesh filter media disposed about the perforated pipe, and a protective wrapper disposed about the filter media. The protective wrapper comprises an outer perforated layer and an inner layer that is disposed between the outer layer and the filter media. A surface of the inner layer that faces the outer perforated layer has a non-smooth contour, with this surface of the inner layer having portions in direct contact with an inner surface of the outer layer. The inner layer is provided with apertures that are disposed in such a way that fluid cannot flow from the outer surface of the outer perforated layer directly radially both through holes of the outer layer and through the apertures of the inner layer.

    Abstract translation: 提供了一种用于井中使用的穿孔管的颗粒控制筛组件,砂过滤器系统及其制造方法。 筛网组件包括布置在穿孔管周围的织网过滤介质和围绕过滤介质设置的保护性包裹物。 保护性包装物包括外部穿孔层和设置在外层和过滤介质之间的内层。 内层的面向外穿孔层的表面具有非平滑轮廓,内层的该表面具有与外层的内表面直接接触的部分。 内层设置有孔,其设置成使得流体不能从外部穿孔层的外表面直接径向通过外层的孔并通过内层的孔径流动。

    Electro-coalescence/magnetic separation (ECMS) system and components for
removal of contaminants from water streams, including desalinization
    69.
    发明授权
    Electro-coalescence/magnetic separation (ECMS) system and components for removal of contaminants from water streams, including desalinization 失效
    电 - 聚结/磁分离(ECMS)系统和用于从水流中除去污染物的组分,包括脱盐

    公开(公告)号:US5728303A

    公开(公告)日:1998-03-17

    申请号:US789780

    申请日:1997-01-28

    Abstract: An improved electro-coalescent/magnetic separation (ECMS) system for removing contaminants from water, including desalinization, comprises a device for exposing a stream of water to be treated to an electric field, followed by introduction of ionized coagulating substances, including ionized gases and/or metal ions, followed by plural filter stages. The first filter stage may comprise a polarizable glass, alumina, or ceramic media provided as a bed in a tank with an underdrain, so as to provide substantial residence time. A polishing filter may comprise a very fine fiber or organic gel filter element confined between relatively flexible electrically-conductive screen members and provided with a DC power supply to polarize the filter. This assembly is confined between relatively rigid, perforated members such that the filter assembly can move slightly upon backwash to dislodge caked-on contaminants or the like, while preserving the structural integrity of the filter assembly.

    Abstract translation: 用于从水中除去污染物(包括脱盐)的改进的电 - 聚结/磁分离(ECMS)系统包括用于将待处理的水流暴露于电场的装置,随后引入包括电离气体的离子化凝结物质, /或金属离子,随后是多个过滤阶段。 第一过滤器阶段可以包括可极化的玻璃,氧化铝或陶瓷介质,其作为在具有欠缺的槽的槽中提供,以便提供显着的停留时间。 抛光过滤器可以包括限定在相对柔性的导电屏蔽件之间的非常细的纤维或有机凝胶过滤元件,并且设置有直流电源以使过滤器极化。 该组件被限制在相对刚性的穿孔构件之间,使得过滤器组件可以在反冲洗时稍微移动以移除结块的污染物等,同时保持过滤器组件的结构完整性。

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