公开(公告)号：US06321858B1

公开(公告)日：2001-11-27

申请号：US09493641

申请日：2000-01-28

申请人： Steven W. Wentworth ,  Robert F. Crane

发明人： Steven W. Wentworth ,  Robert F. Crane

IPC分类号： E21B704

CPC分类号： E21B10/08 ,  E21B7/064

摘要： An improved drill bit for directional drilling includes a housing or headpiece having means at a rear end thereof for mounting the bit on a trailing component of a drill head, and passages for ejection of drilling fluid into a borehole. A first axle is mounted to extend forwardly from a front end of the housing, and a first roller is rotatably mounted on the first axle. The first roller has cutting projections such as carbide studs thereon and extends outside of the outer diameter of the housing by a distance which defines the size of the borehole when the drill bit is rotated over 360 degrees. A second axle is mounted to extend from the front end of the housing, and a second roller is rotatably mounted on the second axle at a position offset from the first axle. The second roller extends slightly outside of the outer diameter of the housing, but by a distance less than the distance the first roller extends outside of the housing. The second roller is configured to provide a reaction surface for the first roller as the first roller bores the borehole with the cutting projections.

摘要翻译： 用于定向钻孔的改进的钻头包括在其后端具有用于将钻头安装在钻头的尾部部件上的装置的壳体或头盔以及用于将钻井液喷射到钻孔中的通道。 第一轴安装成从壳体的前端向前延伸，并且第一辊可旋转地安装在第一轴上。 第一辊具有诸如其上的硬质合金柱的切割突起，并且当钻头旋转360度以上时，该距离限定了钻孔尺寸的距离。 第二轴被安装成从壳体的前端延伸，并且第二辊在与第一轴偏移的位置处可旋转地安装在第二轴上。 第二辊略微延伸到壳体的外径之外，但是距离小于第一辊延伸到壳体外部的距离。 第二辊构造成当第一辊用切割突起孔钻孔时，为第一辊提供反作用表面。

公开(公告)号：US06302410B1

公开(公告)日：2001-10-16

申请号：US09425573

申请日：1999-10-22

申请人： Steven W. Wentworth ,  Robert F. Crane

发明人： Steven W. Wentworth ,  Robert F. Crane

IPC分类号： E21B1910

CPC分类号： E21B19/161 ,  E21B19/22 ,  Y10T279/3462

摘要： An improved jaw for a rod gripping device is provided including a front, rod engaging face with a plurality of teeth or studs made of a material harder than the jaw body, such as tungsten carbide, with the studs positioned to engage an outer rounded rod surface. In one embodiment, the studs are oriented radially inward toward a longitudinal axis defined by the rod engaging surface. The rod engaging face of the jaw may have a concave shape in its lengthwise direction, thus being adapted to grasp a cylindrical member such as a rod or pipe section. A tool for gripping a rod including a pair of jaws is also provided.

摘要翻译： 提供了一种用于杆夹持装置的改进的夹爪，其包括具有多个由诸如碳化钨之类的夹爪本体硬化的材料制成的多个齿或螺柱的前部杆接合面，其中所述螺柱被定位成接合外部圆形杆表面 。 在一个实施例中，螺柱朝向由杆接合表面限定的纵向轴向径向向内定向。 钳口的杆接合面在其长度方向上可以具有凹形，因此适于抓住诸如杆或管段的圆柱形构件。 还提供了用于夹持包括一对钳口的杆的工具。

公开(公告)号：US06283229B1

公开(公告)日：2001-09-04

申请号：US09024834

申请日：1998-02-17

申请人： Steven W. Wentworth ,  Robert F. Crane

发明人： Steven W. Wentworth ,  Robert F. Crane

IPC分类号： E21B406

CPC分类号： E21B7/30 ,  E21B4/06 ,  E21B7/206

摘要： An impact boring tool according to the invention suitable for using with a directional boring machine has a tubular housing and a head mounted at a front end of the housing. The head preferably includes a chisel configured for breaking loose rocks and stones encountered in soil. A striker is disposed within the housing for delivering an impact force to the head, either directly or through one or more intervening parts. A trigger mechanism causes the striker to deliver an impact to the head and chisel only when an external force exerted on the impact tool in its lengthwise direction exceeds a predetermined level. This predetermined level generally coincides with a maximum effective amount of pushing or pulling force for moving the tool through the ground exerted by an external device such as a directional boring machine.

摘要翻译： 适用于定向钻孔机的根据本发明的冲击钻具具有管状壳体和安装在壳体前端的头部。 头部优选地包括凿子，其构造成用于破坏在土壤中遇到的松散的岩石和石块。 撞击器设置在壳体内，用于将冲击力直接地或通过一个或多个中间部分传递给头部。 触发机构仅在施加在冲击工具上的外力沿其长度方向超过预定水平时才使冲击器向头部和凿子施加冲击。 该预定水平通常与由诸如定向钻孔机之类的外部装置施加的通过地面移动工具的推力或拉力的最大有效量重合。

公开(公告)号：US06273201B1

公开(公告)日：2001-08-14

申请号：US09505640

申请日：2000-02-16

申请人： Mark D. Randa ,  Steven W. Wentworth ,  Robert F. Crane

发明人： Mark D. Randa ,  Steven W. Wentworth ,  Robert F. Crane

IPC分类号： E21B100

CPC分类号： E21B10/40 ,  E21B4/14 ,  E21B7/26

摘要： A ground piercing tool has an elongated tubular tool housing and a striker that reciprocates within an internal chamber of the housing. The striker impacts a front impact surface and drives the tool through the ground. An air distributing mechanism causes the striker to reciprocate in response to a supply of compressed fluid. An anvil providing a front impact surface is disposed in a front end opening of the tool housing. The anvil has a rear frustoconical portion that engages a like-shaped forwardly tapering inner wall of the housing and a lengthwise bore that has an enlarged diameter portion. A chisel is slidably disposed in the bore of the anvil and has an outwardly opening annular groove. A spring is confined in compression in a space defined by the annular groove of the chisel and the enlarged diameter portion of the anvil bore. The spring urges the rear end of the chisel to protrude rearwardly from the bore of the anvil a predetermined distance. The spring compresses as the striker delivers an impact to the chisel and moves the chisel forward until the striker contacts a rear end of the anvil.

摘要翻译： 地面穿孔工具具有细长的管状工具壳体和在壳体的内部腔室内往复运动的撞针。 撞击器撞击前冲击表面并将工具驱动通过地面。 空气分配机构使得冲击器响应于压缩流体的供应而往复运动。 提供前冲击表面的砧设置在工具壳体的前端开口中。 砧具有后截头圆锥形部分，其接合壳体的类似形状的向前渐缩的内壁和具有扩大的直径部分的纵向孔。 砧座可滑动地设置在砧座的孔中并且具有向外开口的环形槽。 弹簧被限制在由凿子的环形槽和砧座孔的扩大直径部分限定的空间中的压缩中。 弹簧促使砧座的后端从砧座的孔向后突出预定的距离。 弹簧随着撞击器向凿子施加冲击并将凿子向前移动直到撞击器接触砧座的后端。

公开(公告)号：US06792820B2

公开(公告)日：2004-09-21

申请号：US10113815

申请日：2002-03-29

申请人： Steven W. Wentworth ,  Payce D. Reynolds

发明人： Steven W. Wentworth ,  Payce D. Reynolds

IPC分类号： G01M1900

CPC分类号： E03F3/06 ,  E03F7/12 ,  E03F9/00 ,  E03F2003/065 ,  F16L55/1658

摘要： A method of replacing an existing underground pipe, especially a sanitary sewer line, uses a boring machine that advances a drill string of hollow rods through the existing pipe. The method includes the steps of mounting a rotary cleaning tool on a distal end of the drill string, moving the cleaning tool progressively through the underground pipe while rotating the drill string in order to clean the inside of the pipe, flushing debris loosened by the cleaning tool from the pipe using a pressure fluid, removing the cleaning tool from the drill string and mounting a camera assembly on the distal end of the drill string, moving the camera and drill string through the underground pipe on the drill string and inspecting the inside surface of the pipe with the camera, removing the camera from the drill string and replacing it with a pipe destroying apparatus, moving the pipe destroying apparatus through the pipe to destroy the existing pipe, and then installing a replacement pipe along the same line as the destroyed existing pipe. This permits a single piece of equipment, such as a directional drill rig, to perform several different functions as part of the pipe replacement process.

摘要翻译： 更换现有的地下管道，特别是卫生污水管线的方法，是使用一个钻孔机，该钻孔机通过现有管道推进一根中空杆钻柱。 该方法包括以下步骤：将旋转清洁工具安装在钻柱的远端上，使清洁工具逐渐地穿过地下管道，同时旋转钻柱以清洁管道的内部，冲洗由清洁物松动的碎屑 使用压力流体从管道中取出工具，从钻柱中移除清洁工具并将相机组件安装在钻柱的远端上，将相机和钻柱移动穿过钻柱上的地下管并检查内表面 使用相机拆下摄像机，用管道破坏装置更换相机，通过管道移动管道破坏装置以摧毁现有管道，然后沿着与销毁的管线相同的线路安装更换管道 现有管道。 这允许单件设备，例如定向钻机，作为管道更换过程的一部分执行几种不同的功能。

公开(公告)号：US06761507B2

公开(公告)日：2004-07-13

申请号：US09946081

申请日：2001-09-04

申请人： Steven W. Wentworth ,  Mark D. Randa

发明人： Steven W. Wentworth ,  Mark D. Randa

IPC分类号： F16L5500

CPC分类号： E21B17/05 ,  E21B4/14 ,  E21B7/30 ,  F16L55/1658

摘要： An impactor for use with a directional boring machine for replacement of underground pipes includes a bursting head having a rearwardly opening recess and a front end opening that communicates with the recess. An inlet pipe is connected at its front end to a distal end of the drill string and extends into the recess of the bursting head through the front end opening. A striker is mounted for sliding movement along the inlet pipe, and a distributing mechanism responsive to pressure fluid supplied through the drill string and inlet pipe causes the striker to reciprocate in the rearwardly opening recess of the head to deliver forward impacts against the bursting head. The striker and distributing mechanism are mounted in a tubular housing, and a pulling connection is provided by which the impactor can be pulled by the drill string while the striker is delivering impacts against the head in the same direction as a pulling force exerted by the drill string. The bursting head is preferably slidably mounted on the inlet pipe and moves forward relative to the inlet pipe and drill string in response to an impact of the striker against the bursting head. The impactor can be readily used with existing directional boring machines.

摘要翻译： 用于更换地下管道的定向钻孔机的冲击器包括具有后开口凹部的破裂头和与凹部连通的前端开口。 入口管在其前端连接到钻柱的远端，并通过前端开口延伸到破裂头的凹部中。 一个撞击器被安装用于沿入口管滑动运动，并且响应于通过钻柱和入口管供给的压力流体的分配机构使撞针在头部的向后打开的凹部中往复运动以向前冲击冲击头。 撞击器和分配机构安装在管状壳体中，并且提供牵引连接，冲击器可以由钻柱拉动，当撞针以与钻头施加的拉力相同的方向传递冲击头部时 串。 爆裂头优选地可滑动地安装在入口管上，并响应于撞针对爆破头的冲击而相对于入口管和钻柱向前移动。 冲击器可以方便地与现有的定向钻孔机一起使用。

公开(公告)号：US06299382B1

公开(公告)日：2001-10-09

申请号：US08709981

申请日：1996-09-20

申请人： Steven W. Wentworth

发明人： Steven W. Wentworth

IPC分类号： F16L100

CPC分类号： B25B27/023 ,  Y10T29/49822

摘要： A method is provided for removing an expander from a ground piercing tool of the type having an elongated tubular tool body with a front nose and a striker disposed for reciprocation within an internal chamber of the body to impart impacts to an impact surface for driving the tool forwardly through the ground. The expander is tightly fitted onto the nose of the tool body. The method of the invention uses a pulling device comprising a pair of arms ending in hooks and mounted at ends opposite the hooks to a yoke having a threaded hole therethrough, and a screw including a threaded stem inserted through and threadedly coupled with the hole. Suitable means are provided for engagement with a device for turning the screw. The method according to a first aspect of the invention includes the steps of positioning the hooks of the pulling device in engagement with a pair of rearwardly facing shoulders on the expander, positioning an end of the screw in contact with the nose of the tool, and tightening the screw against the nose of the tool using the turning device on the engaging means, thereby exerting a pulling force through the arms sufficient to disengage the expander from the nose of the tool.

摘要翻译： 提供了一种用于从具有带有前鼻部的细长管状工具主体的类型的地面穿孔工具中移除膨胀器的方法，该冲头设置用于在主体的内部腔室内往复运动，以对冲击表面施加冲击以驱动工具 向前穿过地面。 膨胀机紧紧地装在工具体的鼻子上。 本发明的方法使用一种牵引装置，该牵引装置包括一对以钩形结束的臂，并且安装在与钩相对的端部处，具有穿过其中的螺纹孔的轭，以及包括插入并穿过孔的螺纹杆的螺钉。 提供适合的装置用于与用于转动螺钉的装置接合。 根据本发明的第一方面的方法包括以下步骤：将拉动装置的钩定位成与膨胀机上的一对向后的肩部接合，将螺钉的端部定位成与工具的鼻部接触，以及 使用接合装置上的转动装置将螺钉紧固在工具的鼻部上，从而通过臂施加足以使扩张器与工具的鼻子分离的拉力。

公开(公告)号：US06269889B1

公开(公告)日：2001-08-07

申请号：US08957803

申请日：1997-10-24

申请人： Steven W. Wentworth

发明人： Steven W. Wentworth

IPC分类号： E21B726

CPC分类号： E21B7/206 ,  E21B4/145

摘要： A ground piercing tool of the invention includes an elongated tubular housing having front and rear openings, a head including an anvil secured in the front opening of the housing, a striker disposed for reciprocation within an internal chamber of the housing to impart impacts to a rear impact surface of the anvil for driving the tool through the ground, a reciprocation mechanism for reciprocating the striker, and a tail assembly mounted in a rear end opening of the housing that secures the striker and reciprocation mechanism in the housing. A plastic tube forms the body of the housing, and the plastic tube is secured to the head. The reciprocation mechanism is preferably an air distributing mechanism that uses compressed air to reciprocate the striker. Such a tool can be used to install an underground pipe by welding a front end of the replacement pipe coaxially to a rear end of the plastic tube, operating the tool over a run to pull the pipe into the ground, and when the tool has reached the end of the run, disconnecting the tool from the replacement pipe.

摘要翻译： 本发明的地面穿孔工具包括具有前开口和后开口的细长管状壳体，包括固定在壳体的前开口中的砧座的头部，其设置用于在壳体的内部腔室内往复运动以对后部施加冲击 用于将工具驱动通过地面的砧座的冲击表面，用于使撞针往复运动的往复机构，以及安装在壳体的后端开口中的尾部组件，其将冲头和往复运动机构固定在壳体中。 塑料管形成外壳的主体，塑料管固定在头上。 往复运动机构优选地是使用压缩空气使冲击器往复运动的空气分配机构。 这种工具可用于通过将更换管的前端同轴地与塑料管的后端焊接在一起，将工具运行在管道上以将管道拉入地面中，并且当工具达到 运行结束，将工具与替换管道断开连接。

公开(公告)号：US5651639A

公开(公告)日：1997-07-29

申请号：US533610

申请日：1995-09-25

申请人： Steven W. Wentworth ,  Robert Crane

发明人： Steven W. Wentworth ,  Robert Crane

IPC分类号： F16L55/165 ,  F16L1/00

CPC分类号： F16L55/1657

摘要： The invention provides an apparatus and a method for installing a pipe in a pre-bored hole. According to one aspect of the invention, the apparatus comprises a plug having a rear cylindrical portion with external threads engaged with internal threads of a front portion of a plastic pipe section. A front portion of the plug includes a pulling attachment, and a rear portion of the pipe section extends beyond the rear portion of the plug for attachment to a pipe to be towed through the hole. According to another aspect of the invention, the apparatus comprises a plug having a pulling attachment at a front end, a rear portion with external threads, a lengthwise external cutaway portion on the rear portion, and a slot extending radially through the rear portion. The lengthwise external cutaway portion forms an edge for cutting into an interior surface of a plastic pipe and the slot forms a suitable collection space for collecting pieces of plastic cut from the interior of the pipe by engagement of the threads. The invention also provides an apparatus and method for simultaneously installing several underground pipes in a pre-bored hole. This apparatus comprises a mounting plate having a generally flat plate including a plurality of spaced, crucifix-shaped openings extending through the plate. Several pulling devices can be secured to the mounting plate by sliding a plurality of chains, each chain attached to one pulling device, into one of the openings.

摘要翻译： 本发明提供了一种在预钻孔中安装管道的装置和方法。 根据本发明的一个方面，该装置包括具有后圆柱形部分的插头，其具有与塑料管部分的前部的内螺纹接合的外螺纹。 插头的前部包括拉动附件，并且管部分的后部延伸超过插头的后部，用于附接到待通过该孔拖动的管道。 根据本发明的另一方面，该装置包括一个插头，其前端具有一个牵引附件，一个具有外螺纹的后部，后部上的纵向外部切除部分，以及一个径向延伸穿过该后部的槽。 纵向外部切除部分形成用于切割成塑料管的内表面的边缘，并且狭槽形成适当的收集空间，用于通过螺纹的接合收集从管内部切割的塑料片。 本发明还提供了一种用于在预钻孔中同时安装若干地下管道的装置和方法。 该装置包括具有大致平板的安装板，该平板包括延伸穿过板的多个间隔开的十字架形开口。 通过将多个链条（每个链条附接到一个牵引装置）滑动到其中一个开口中，可以将多个牵引装置固定到安装板。

公开(公告)号：US07500651B2

公开(公告)日：2009-03-10

申请号：US11438568

申请日：2006-05-22

申请人： Steven W. Wentworth ,  Paul W. Hau

发明人： Steven W. Wentworth ,  Paul W. Hau

IPC分类号： B66D1/00

CPC分类号： E21B7/02 ,  B66D1/741 ,  E21B7/20 ,  E21B19/084 ,  H02G1/08 ,  H02G11/003 ,  H02G11/02

摘要： A portable winch suitable for use in underground pipe bursting and replacement includes a mounting frame positionable at a top opening of a hole such as a receiving pit or manhole. A telescoping mast having a series of nested, top and bottom mast sections is mounted on the frame. A powered winch unit, also mounted on the frame, includes a drive unit and a cable. A guide assembly includes a sheave that guides the cable from the drive unit to the bottom mast section. Suitable means are connected to the frame for mechanically raising and lowering the mast into and out of the hole. As such, the mast according to the invention does not require assembly or disassembly at the beginning and end of each job. The mechanical means for raising and lowering the mast is preferably the powered winch unit.

摘要翻译： 适用于地下管道破裂和更换的便携式绞车包括可定位在诸如接收坑或人孔的孔的顶部开口处的安装框架。 具有一系列嵌套，顶部和底部桅杆部分的伸缩式桅杆安装在框架上。 也安装在框架上的动力绞盘单元包括驱动单元和电缆。 引导组件包括将电缆从驱动单元引导到底部桅杆部分的滑轮。 合适的装置连接到框架上，用于机械地升高和降低桅杆进入和离开孔。 因此，根据本发明的桅杆在每个作业的开始和结束时不需要组装或拆卸。 用于升降桅杆的机械装置优选是动力绞盘单元。