公开(公告)号：US5339895A

公开(公告)日：1994-08-23

申请号：US34980

申请日：1993-03-22

Applicant: Bryant A. Arterbury ,  James E. Spangler

Inventor： Bryant A. Arterbury ,  James E. Spangler

IPC: E03B3/18 ,  B01D29/11 ,  B01D39/16 ,  E21B43/08 ,  E21B43/00

CPC classification number: E21B43/084 ,  B01D29/111 ,  B01D39/1661 ,  E21B43/082 ,  B01D2201/0407

Abstract: A prepack well screen assembly for separating particulate material from formation fluid has inner and outer screens concentrically mounted in radially spaced relation around a perforated mandrel, thereby defining a prepack annulus in which a plurality of spherical plastic members are disposed. The concentric inner screen includes longitudinally extending rib wires spaced circumferentially around the mandrel, and a screen wire wrapped externally about the rib wires in a longitudinally spaced pattern to define spaced screen apertures for conducting formation fluids through the inner screen. The outer screen is a cylindrical fluid-porous, particulate-restricting member which is radially spaced from the inner screen to form the prepack annulus. The particulate-restricting member includes rib wires which are spaced circumferentially around the inner screen within the prepack annulus, and an outer screen wire wrapped externally about the rib wires to define the annulus. The outer screen wire is wrapped about the rib wires in a longitudinally spaced pattern to delineate spaced screen apertures for conducting formation fluids through the outer screen. The spherical plastic members are disposed within the prepack annulus and heated until the spherical plastic members become tacky and bond to each other to form a sintered, homogenous mass.

Abstract translation: 用于将颗粒材料与地层流体分离的预制井眼筛组件具有围绕穿孔心轴以径向间隔的关系同心地安装的内筛和外筛，由此限定了其中设置有多个球形塑料构件的预填充环。 同心内屏幕包括围绕心轴周向间隔开的纵向延伸的肋线，以及围绕肋线的外围以纵向隔开的图案包裹的丝网，以限定用于通过内屏幕传导地层流体的间隔开的筛孔。 外屏幕是与内屏幕径向间隔开以形成预备片环的圆柱形流体多孔的颗粒限制构件。 颗粒限制构件包括在预制环空间内围绕内屏幕周向隔开的肋线，以及围绕肋线外围缠绕以限定环形的外屏蔽丝。 外屏蔽丝线以纵向间隔的图案缠绕在肋条线周围，以描绘间隔开的筛孔，用于通过外屏幕传导地层流体。 球形塑料构件设置在预制环形空间内并加热直到球形塑料构件变粘并彼此结合以形成烧结的均匀质量。

公开(公告)号：US5316677A

公开(公告)日：1994-05-31

申请号：US918236

申请日：1992-07-23

Applicant: Harold H. Harms, II

Inventor： Harold H. Harms, II

IPC: B01D29/11 ,  B01D27/06

CPC classification number: B01D29/111 ,  B01D2201/0407 ,  B01D2201/127 ,  B01D2201/307

Abstract: A filter cartridge for use in a fluid filtering system, constructed to induce rotational flow in the unfiltered fluid, includes a pleated filter sleeve in which the individual sleeves are slanted relative to the sleeve circumference in a direction opposite to the direction of the rotational flow fluid. The slanted pleats can be constructed by creasing a sheet of filter media at alternatingly shorter and longer widths to form pleats having relatively shorter front legs and relatively longer back legs. The shorter front legs bias the pleats in the counter-rotational direction.

Abstract translation: 用于在未过滤流体中引起旋转流动的流体过滤系统中的滤筒包括打褶过滤器套筒，其中各个套筒相对于套筒周向在与旋转流体流体的方向相反的方向上倾斜 。 倾斜的褶皱可以通过以交替更短和更长的宽度折叠一张过滤介质来形成，以形成具有相对较短的前腿和相对较长的后腿的褶。 较短的前腿在反向旋转方向上偏压褶皱。

公开(公告)号：US5279731A

公开(公告)日：1994-01-18

申请号：US756598

申请日：1991-09-09

Applicant: Nigel J. D. Cook ,  Kenneth R. Weight ,  Richard G. Gutman ,  Roger A. Buttery

Inventor： Nigel J. D. Cook ,  Kenneth R. Weight ,  Richard G. Gutman ,  Roger A. Buttery

IPC: B01D29/07 ,  B01D29/11 ,  B01D39/16 ,  B01D39/20 ,  B01D46/52 ,  B01D27/06

CPC classification number: B01D39/2024 ,  B01D29/111 ,  B01D39/1623 ,  B01D2201/0407 ,  B01D2201/182 ,  Y10S55/05

Abstract: A porous filter medium is formed by a pleated cylinder of a depth filter medium. An absolute rated inner filtration layer is arranged between upstream and downstream drainage layers. The depth filter medium is formed from a continuous sleeve. Additionally or alternatively at least the downstream drainage layer may be formed integrally with at least a part of an inner filtration layer. The material of the medium may be a fibrous mass of non-woven synthetic polymeric micro-fibers which are free of fiber-to-fiber bonding and are secured to each other by mechanical entanglement or intertwining, with the diameter of the fibrous structure varying across the medium.

Abstract translation: 多孔过滤介质由深度过滤介质的打褶圆筒形成。 在上游和下游排水层之间设置绝对额定的内部过滤层。 深度过滤介质由连续的套筒形成。 另外或替代地，至少下游排水层可以与内部过滤层的至少一部分一体地形成。 介质的材料可以是无纺合成聚合物微纤维的纤维团，其不含纤维与纤维结合，并且通过机械缠结或交织在一起而彼此固定，纤维结构的直径各不相同 介质。

公开(公告)号：US5196119A

公开(公告)日：1993-03-23

申请号：US543326

申请日：1990-06-25

Applicant: Harold H. Harms ,  Edmund B. Bourgeois

Inventor： Harold H. Harms ,  Edmund B. Bourgeois

IPC: B01D29/11

CPC classification number: B01D29/111 ,  B01D2201/0407 ,  B01D2201/307

Abstract: A filtering system comprises an outer housing into which fluid enters tangentially through a side inlet port to create rotational flow therein. Solid contaminants which clog filtering media are precipitated to the bottom of housing through action of centrifugal force in rotational flow. An inner can, disposed within the housing shrouds a filter cartridge. Unfiltered fluid flows rotationally into the inner can and is filtered through a vertical cylindrical filter cartridge. Filtered fluid flows up through the center of said cartridge to a clean fluid chamber below a domed cover and exists downwardly through a vertical outlet tube extending through the filter cartridge to an outlet port in the bottom of the housing. Gases in the system are collected in the clean fluid chamber and transported by the fluid flow through the outlet tube, thereby automatically purging gases from the filtering system.

Abstract translation: 过滤系统包括外壳，流体通过侧入口切向地流入其中，以在其中产生旋转流。 堵塞过滤介质的固体污染物通过旋转流中离心力的作用沉淀到壳体的底部。 设置在壳体内部的内罐罩罩过滤筒。 未过滤的流体旋转地流入内罐，并通过垂直圆柱形滤芯过滤。 过滤流体通过所述筒的中心向上流动到位于圆顶盖下方的清洁流体室，并且通过延伸穿过过滤器滤芯的垂直出口管向下存放到壳体底部的出口。 系统中的气体被收集在清洁的流体室中并被流体流通过出口管传送，从而自动地从过滤系统中吹扫气体。

公开(公告)号：US4488966A

公开(公告)日：1984-12-18

申请号：US429887

申请日：1982-09-30

Applicant: John I. Schaeffer

Inventor： John I. Schaeffer

IPC: B01D29/21 ,  B01D27/06

CPC classification number: B01D29/21 ,  B01D2201/0407 ,  B01D2201/127

Abstract: This invention comprehends a new and unique means for preventing the crowns (forward projections of the pleats) of a backflushable filter element from splitting due to the cyclic action that is experienced during cleaning and backflushing. In one embodiment, a plurality of spacers, preferably wedge shape, is positioned between the outwardly projecting pleats of the filter media thereby preventing the splitting thereof. A plurality of spacers may also be placed between the inwardly projecting pleats to provide additional support during the cleaning and backflushing cycle. In another embodiment a ring is placed adjacent the inwardly directed pleats and the inner end cap lip; this also prevents splitting of the crowns when the filter element is subjected to the cyclic action of cleaning and backflushing.

Abstract translation: 本发明包括一种新的和独特的方法，用于防止可反吹过滤元件的冠部（褶皱的向前突出）由于在清洗和反吹过程中经历的循环作用而分裂。 在一个实施例中，多个间隔件，优选为楔形，位于过滤介质的向外突出的褶皱之间，从而防止其分离。 多个间隔物也可以放置在向内突出的褶之间，以在清洗和反冲洗循环期间提供额外的支撑。 在另一个实施例中，环邻近向内指向的褶和内端盖唇缘放置; 当过滤元件经受清洗和反吹的循环作用时，这也防止了冠的分离。

公开(公告)号：US4186099A

公开(公告)日：1980-01-29

申请号：US916481

申请日：1978-06-19

Applicant: Arthur O. Henschel, Jr. ,  Lurin K. McCracken

Inventor： Arthur O. Henschel, Jr. ,  Lurin K. McCracken

IPC: B01D29/21 ,  B01D27/06

CPC classification number: B01D29/21 ,  B01D2201/0407

Abstract: A consumer rebuildable filter cartridge for mounting in a fluid filter chamber in a fluid flow path includes inner and outer perforated tubular members mounted coaxially on a fixed end cap to form an annular chamber. A filter element of pleated sheet filter material is formed in a tubular construction and fitted into the annular space defined between the inner and outer tubular members and is sealed at each end by suitable resilient seal washers, compressed between the fixed end cap and a movable end cap. The inner and outer tubular members forms support structure for supporting the tubular paper filter element and permits the removal and replacement of such filter elements.

Abstract translation: 用于安装在流体流动路径中的流体过滤室中的消费者可重建滤筒包括同轴地安装在固定端盖上以形成环形室的内部和外部穿孔管状构件。 打褶片材过滤材料的过滤元件形成为管状结构并且装配到限定在内管状构件和外管状构件之间的环形空间中，并且通过适当的弹性密封垫圈在每个端部处密封，压缩在固定端盖和可动端 帽。 内部和外部管状构件形成用于支撑管状纸过滤元件的支撑结构，并允许移除和更换这些过滤元件。

公开(公告)号：US4154688A

公开(公告)日：1979-05-15

申请号：US872863

申请日：1978-01-27

Applicant: David B. Pall

Inventor： David B. Pall

IPC: B01D46/52 ,  B01D29/07 ,  B01D29/21 ,  B01D39/14 ,  B01D61/02 ,  B01D61/08 ,  B01D61/10 ,  B01D61/14 ,  B01D61/18 ,  B01D61/20 ,  B01D63/06 ,  B01D63/14

CPC classification number: B01D29/21 ,  B01D39/14 ,  B01D63/067 ,  B01D2201/0407

Abstract: A corrugated tubular filter element is provided, resistant to corrugation collapse under high differential pressure, although formed of filter sheet material susceptible to such collapse, comprising, in combination, filter sheet material enclosed in a dual layer of more open foraminous sheet material and formed in a closed corrugated configuration having axial corrugation folds arranged in groups with adjacent side surfaces in supporting contact with each other; and, interposed between said groups, solid wedge support elements extending axially of the corrugation folds from end to end of the element having side surfaces in supporting contact with external side surfaces of the end folds of each group, substantially filling the spaces between the end folds of adjacent groups, and confining the folds of each group in substantially parallel array against lateral movement; and a foraminous support sheath disposed at least one of externally and internally of the filter sheet material in supporting contact with adjacent fold ends and retaining the wedge support elements and folds against one of outward and inward movement.

Abstract translation: {PG，1 A波纹管状过滤器元件，在高压差下能够抵抗波纹塌陷，尽管由易于发生这种塌陷的过滤片材料形成，但组合在一起，包括封闭在更开放的多孔板的双层中的过滤材料 材料并形成为具有轴向波纹折叠的封闭波纹形状，其中相邻侧表面彼此支撑接触; 并且插入在所述组之间，固体楔形支撑元件从所述元件的端部到端部的所述波纹褶皱的轴向延伸，所述侧表面与每个组的端部折叠的外侧表面支撑接触，基本上填充所述端部折叠之间的空间 并且将每组的折叠限制在基本上平行的阵列中以抵抗横向运动; 以及多孔支撑护套，其设置在所述过滤片材料的外部和内部中的至少一个与相邻的折叠端部支撑接触并且保持所述楔形支撑元件并且抵靠所述向外和向内的运动中的一种。

公开(公告)号：US3933557A

公开(公告)日：1976-01-20

申请号：US393688

申请日：1973-08-31

Applicant: David B. Pall

Inventor： David B. Pall

IPC: B01D25/00 ,  B01D29/11 ,  B01D39/16 ,  D04H1/00 ,  D04H1/56 ,  D04H1/70 ,  D04H3/04 ,  D04H3/07 ,  D04H3/16

CPC classification number: B01D29/111 ,  B01D25/001 ,  B01D39/163 ,  D04H1/56 ,  B01D2201/0407 ,  B01D2201/188 ,  B01D2239/04 ,  B01D2239/0428 ,  B01D2239/0464 ,  B01D2239/0622 ,  B01D2239/065 ,  B01D2239/0654 ,  B01D2239/0695 ,  B01D2239/10 ,  B01D2239/1216 ,  B01D2239/1233 ,  Y10S264/75 ,  Y10T428/1362 ,  Y10T428/249922 ,  Y10T442/681

Abstract: A process is provided for the continuous production of nonwoven webs in cylindrical or sheet form from thermoplastic fibers, spinning the fibers continuously from a melt onto a rotating mandrel and winding them up on the mandrel to form a generally spirally wound cylinder. Density of the wound cylinder is controlled by controlling the distance between the rotating mandrel and the orifices of the spinning die through which the molten polymeric material is spun. If the spinning of the fibers is continuous, the cylinder can be formed in a continuous length. Control of the spinning rate in relation to the diameter and rate of rotation of the mandrel and the rate of advance of the cylinder on the mandrel controls the thickness of the cylinder. The cylinder can be drawn off the mandrel and used as a cylinder, or either slit lengthwise and opened out, or collapsed onto itself, for use as a sheet. The process is particularly adapted for forming filter elements.

Abstract translation: 提供了一种用于从热塑性纤维连续生产圆柱形或片状非织造纤维网的方法，将纤维从熔体连续地旋转到旋转心轴上并将其卷绕在心轴上以形成大致螺旋卷绕的圆筒。 通过控制旋转心轴和纺丝模头的孔之间的距离来控制伤口圆筒的密度，熔融聚合物材料通过该距离旋转。 如果纤维的纺丝是连续的，则圆筒可以形成为连续的长度。 相对于心轴的直径和转速的旋转速度的控制以及心轴上的气缸的前进速度来控制气缸的厚度。 圆筒可以从心轴上取出并用作圆柱体，或者纵向切开或开裂，或者折叠在自身上，用作片材。 该方法特别适用于形成过滤元件。

公开(公告)号：US3520417A

公开(公告)日：1970-07-14

申请号：US3520417D

申请日：1969-07-02

Applicant: CARBORUNDUM CO

Inventor： DURR LARRY L ,  FULTON EDWARD D

IPC: B01D29/11 ,  B01D27/06

CPC classification number: B01D29/111 ,  B01D29/21 ,  B01D2201/0407 ,  B01D2201/127

公开(公告)号：US3392843A

公开(公告)日：1968-07-16

申请号：US50199465

申请日：1965-10-22

Applicant: GEN MOTORS CORP

Inventor： MUMBY HERALD W

IPC: B01D29/11 ,  B31D5/00

CPC classification number: B31D5/0082 ,  B01D29/111 ,  B01D29/21 ,  B01D2201/0407 ,  B01D2201/127