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公开(公告)号：US20100175869A1
公开(公告)日：2010-07-15
申请号：US12354452
申请日：2009-01-15
Applicant: Delwin E. Cobb
Inventor： Delwin E. Cobb
CPC classification number: E21B43/38 , B01D21/267 , B01D45/12 , B04C5/081 , B04C5/28
Abstract: The desander (10) for positioning downhole includes a generally tubular desander body (16) and a generally sleeve-shaped vortex body (39, 94). The desander with a seal or packer may be positioned in a well below the casing perforations. The desander with an ESP may be used with gas separator (60), which may include a seal (24) for positioning above the producing formation. The separator (60) may be used independent of the desander for some applications.
Abstract translation: 用于定位井下的脱屑器（10）包括大致管状的脱屑器本体（16）和大致套筒状的涡流体（39,94）。 具有密封件或封隔器的脱屑器可以位于套管穿孔下方的井中。 具有ESP的脱沙器可以与气体分离器（60）一起使用，其可以包括用于在生产地层上方定位的密封件（24）。 分离器（60）可以独立于用于一些应用的脱屑器使用。
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公开(公告)号：US5314018A
公开(公告)日：1994-05-24
申请号：US921715
申请日：1992-07-30
Applicant: Delwin E. Cobb
Inventor： Delwin E. Cobb
CPC classification number: E21B43/38 , B01D21/0042 , B01D21/267
Abstract: Apparatus and method for separating solid particles from well fluids in the bore hole including a separator or separation device (34) adjacent the lower end of a tubing string (14) positioned within a perforated casing (10). The separator device (34) includes concentric tubular members (44, 46) defining an annulus (60) therebetween. A spiral guide (62) is positioned in the annulus (60) about the inner tubular member (46) below perforations (54) in the outer tubular member (44) and extends about the inner tubular member (46) for around a complete turn or 360 degrees. A helical motion is imparted to the well fluids received through the perforations (54) and solid particles settle downwardly within the vortex or swirl chamber (79) below the inner tubular member (46). The liquid separated from the solid particles is pumped by a downhole pump (18) upwardly through the inner tubular member (46).
Abstract translation: 用于从钻孔中的井流体分离固体颗粒的装置和方法，包括邻近位于多孔壳体（10）内的油管柱（14）的下端的分离器或分离装置（34）。 分离器装置（34）包括在其间限定环（60）的同心管状构件（44,46）。 螺旋形引导件（62）围绕外部管状构件（44）中的穿孔（54）下方的内部管状构件（46）定位在环形空间（60）中，并且围绕内部管状构件（46）延伸大约一整圈 或360度。 螺旋运动被赋予通过穿孔（54）接收的井流体，固体颗粒在内部管状构件（46）下方的涡流或涡流室（79）内向下沉降。 从固体颗粒分离的液体通过井下泵（18）向上泵送通过内部管状构件（46）。
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公开(公告)号：US4231726A
公开(公告)日：1980-11-04
申请号：US918123
申请日：1978-06-22
Applicant: Delwin E. Cobb , Maurice E. Young
Inventor： Delwin E. Cobb , Maurice E. Young
CPC classification number: F04C15/062 , F04C2/084
Abstract: A gear pump (10) has a pair of intermeshing gears (12,14) located in a corresponding pair of intersecting cavities (16,18) in a housing (20), and air bleed passages (60) are defined in the housing (20) for passing entrained air collected in the fluid at the tooth roots (42) of the gears (12,14) as a result of centrifugal force away from a preselected region (61,62) of each of the gear cavities (16,18). Preferably, a pair of arcuate air bleed passages (64) are formed in the housing (20) and are located in a trailing portion (62) of the preselected region, and a pair of grooves (70) transmit pressure from a discharge opening (48) back to the tooth roots (42) to positively encourage movement of fluid with entrained air toward the arcuate air bleed passages (64).
Abstract translation: 齿轮泵（10）具有一对相互啮合的齿轮（12,14），其位于壳体（20）中的相应的一对相交空腔（16,18）中，并且排气通道（60）限定在壳体 20），用于将由于离心力离开每个齿轮腔（16,14）的预选区域（61,62）而被收集在齿轮（12,14）的齿根（42）处的流体中的夹带的空气通过， 18）。 优选地，一对弧形排气通道（64）形成在壳体（20）中并且位于预选区域的尾部（62）中，并且一对凹槽（70）将压力从排出口 48）回到牙齿根部（42）以积极地促使流体与夹带的空气朝向弧形排气通道（64）移动。
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公开(公告)号：US20220251937A1
公开(公告)日：2022-08-11
申请号：US17174059
申请日：2021-02-11
Applicant: Delwin E. Cobb
Inventor： Delwin E. Cobb
IPC: E21B43/38
Abstract: A downhole gas-liquid separator (10) separates a gas from liquid in a well, with the liquid being pumped to the surface. The separator includes an outer tubular housing (12) and an inner flow tube (41) for passing the liquid phase to the surface after separation. In one embodiment, a spiral gas separator (32) imparts a helical flow to assist in separation of the gas from the well fluids. Gas from the separation chamber flows upwardly through a gas riser (25) to a downcomer (28), and then downwardly through the downcomer (28) to one or more gas vents (16) in the outer tubular housing (12). The gas riser and downcomer act as a liquid trap to exclude liquids in the annulus surrounding the tool to enter through the gas vents (16).
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公开(公告)号：US09045979B2
公开(公告)日：2015-06-02
申请号：US13711044
申请日：2012-12-11
Applicant: Delwin E. Cobb , Roy Arterbury
Inventor： Delwin E. Cobb , Roy Arterbury
CPC classification number: E21B43/38 , E21B43/127
Abstract: A downhole separator (10) separates gas from well fluids which are pumped intermittently to the surface. The separator includes an outer tubular housing (12) and an inner flow tube (22) for passing well fluids to the surface after separation of the gas from the well fluids. A vortex flow generator or spiral gas separator (20) imparts a helical flow to effect separation of the gas from the well fluids. Gas from the gas chamber flows upward past the vortex flow generator when the pump is not pumping well fluids to the surface.
Abstract translation: 井下分离器（10）将气体与井流体间断地泵送到表面。 分离器包括外部管状壳体（12）和内部流管（22），用于在将气体与井液分离后将井流体传送到表面。 涡流发生器或螺旋气体分离器（20）施加螺旋流以实现气体与井流体的分离。 当泵没有将井液注入表面时，来自气室的气体向上流过涡流发生器。
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Patent Agency Ranking
公开(公告)号：US07314095B2
公开(公告)日：2008-01-01
申请号：US10940462
申请日：2004-09-14
Applicant: Delwin E. Cobb
Inventor： Delwin E. Cobb
IPC: A01B33/06
CPC classification number: A01B1/165
Abstract: A gardening tool extracts a weed along with a plug of soil. A plurality of blades are circumferentially spaced about an axis of a shaft and extend downwardly beyond the lower end of the shaft for insertion into soil about the roots. Each blade includes a trailing edge and a leading edge that leads the trailing edge during rotation in a selected rotational direction about the axis. An ejector body is positioned between the blades and is axially movable from an upper position to a lower position to eject soil from between the blades. An ejector control member at least substantially surrounding the shaft is axially movable by hand. A plurality of connecting members are circumferentially spaced about the shaft and connect the ejector control member to the ejector body, such that axial movement of the ejector control member causes axial movement of the ejector body.
Abstract translation: 一个园艺工具用一根泥土提取杂草。 多个叶片围绕轴的轴线周向间隔开，并且向下延伸超过轴的下端，以插入到根部周围的土壤中。 每个叶片包括后缘和引导边缘，其沿着围绕轴线的选定旋转方向旋转期间引导后缘。 喷射器主体位于叶片之间并且可从上部位置轴向移动到下部位置，以从叶片之间喷出污物。 至少基本上围绕轴的喷射器控制构件可以用手轴向移动。 多个连接构件围绕轴周向间隔开，并将喷射器控制构件连接到喷射器主体，使得喷射器控制构件的轴向运动导致喷射器主体的轴向移动。
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公开(公告)号：US5810081A
公开(公告)日：1998-09-22
申请号：US806238
申请日：1997-02-24
Applicant: Delwin E. Cobb , Roy S. Arterbury
Inventor： Delwin E. Cobb , Roy S. Arterbury
Abstract: A separation device or desander (18) is positioned in a bore hole for separation of solid particles from well fluids and includes outer and inner concentric members (20 and 22) defining an annulus (30) therebetween. A spiral guide (32) is positioned in annulus (30) between the concentric tubular members (20, 22). A wear structure comprising the present invention includes a flat (38) in the outer wall (27) of the outer tubular member (20) to provide a reduced thickness wall portion thereat. Upon wear from abrasive solid particles, and opening (40) is formed at the reduced thickness cutaway portion defined by flat (38). A sleeve (46) may be mounted within the outer tubular member (20) below the inner tubular member (22).
Abstract translation: 分离装置或脱沙器（18）位于钻孔中，用于从井流体分离固体颗粒，并且包括在其间限定环形空间（30）的外部和内部同心构件（20和22）。 螺旋导向件（32）定位在同心管状构件（20,22）之间的环形空间（30）中。 包括本发明的磨损结构包括在外管状构件（20）的外壁（27）中的平坦部（38），以在其上提供减小厚度的壁部分。 在磨损固体颗粒磨损时，在由平坦部分（38）限定的减薄厚度的切口部分形成开口（40）。 套筒（46）可以安装在外部管状构件（20）内部的内部管状构件（22）的下方。
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公开(公告)号：USRE31164E
公开(公告)日：1983-03-01
申请号：US20888
申请日：1979-03-15
Applicant: Delwin E. Cobb , Nathan Gutman , Richard E. Livesay
Inventor： Delwin E. Cobb , Nathan Gutman , Richard E. Livesay
Abstract: A cooling system for cooling the cutting edge of an impact type ripper tip includes a source of liquid coolant under pressure and conduit means for supplying the coolant to a spray head mounted below and behind the ripper tip in a position to distribute liquid coolant to the lower surface of the tip behind the cutting edge. The spray head is detachably mounted directly behind the ripper tip and projects downward beyond the lower surface of the tip.
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公开(公告)号：USRE30769E
公开(公告)日：1981-10-13
申请号：US70934
申请日：1979-08-29
Applicant: Delwin E. Cobb , Jerry D. Fidler , Nathan Gutman , Richard E. Livesay , Gerald P. Simmons , Orrin A. Stemler
Inventor： Delwin E. Cobb , Jerry D. Fidler , Nathan Gutman , Richard E. Livesay , Gerald P. Simmons , Orrin A. Stemler
Abstract: An impact rock breaker includes detachable mounting means and latching means operative to mount the rock breaker on the stick of a backhoe or excavator adjacent the bucket such that the rock breaker can be pivoted between a non-operative position out of the way of the bucket to permit normal operation of the bucket and an operative position latched to the bucket for movement with the bucket for normal operation of the rock breaker.
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公开(公告)号：US11536126B2
公开(公告)日：2022-12-27
申请号：US17174059
申请日：2021-02-11
Applicant: Delwin E. Cobb
Inventor： Delwin E. Cobb
Abstract: A downhole gas-liquid separator (10) separates a gas from liquid in a well, with the liquid being pumped to the surface. The separator includes an outer tubular housing (12) and an inner flow tube (41) for passing the liquid phase to the surface after separation. In one embodiment, a spiral gas separator (32) imparts a helical flow to assist in separation of the gas from the well fluids. Gas from the separation chamber flows upwardly through a gas riser (25) to a downcomer (28), and then downwardly through the downcomer (28) to one or more gas vents (16) in the outer tubular housing (12). The gas riser and downcomer act as a liquid trap to exclude liquids in the annulus surrounding the tool to enter through the gas vents (16).
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