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    Reversible pneumatic ground piercing tool
    1.
    发明授权
    Reversible pneumatic ground piercing tool 失效
    可逆气动地面穿孔工具

    公开(公告)号：US5603383A

    公开(公告)日：1997-02-18

    申请号：US533323

    申请日：1995-09-25

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

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

    IPC分类号： E21B4/14

    CPC分类号： E21B4/145

    摘要： A pneumatic ground piercing tool according to the invention has a reversing mechanism provided as part of the air distributing mechanism. Such a tool includes an elongated tubular housing having a rear opening, a head assembly including an anvil, 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 body through the ground, an air distributing mechanism for effecting reciprocation of the striker, and a tail assembly mounted in a rear end opening of the housing that secures the striker and air distributing mechanism in the housing. In one embodiment, the outer bushing of the valve sleeve can slide a short distance relative to the air supply tube and has an intermediate radial port which selectively communicates with the air supply conduit. The valve sleeve also includes a detent mechanism for securing the air supply tube in its forward or reverse position. A biasing device such as an resilient tube biases the detent mechanism to an unlocked position when the compressed air is off, and is overcome by air pressure so that the detent assumes a locked position when the compressed air is on.

    摘要翻译： 根据本发明的气动地面穿孔工具具有作为空气分配机构的一部分设置的反向机构。 这种工具包括具有后开口的细长管状壳体，包括砧座的头部组件，设置用于在壳体的内部腔室内往复运动的冲击器，以对砧座的后部冲击表面施加冲击，以驱动身体穿过地面 ，用于实现撞击器往复运动的空气分配机构，以及安装在壳体的后端开口中的尾部组件，其将撞针和空气分配机构固定在壳体中。 在一个实施例中，阀套的外套筒可以相对于空气供应管滑动一小段距离，并且具有选择性地与空气供应管道连通的中间径向端口。 阀套还包括用于将供气管固定在其前进或倒退位置的制动机构。 当压缩空气关闭时，诸如弹性管的偏置装置将止动机构偏置到解锁位置，并且通过空气压力克服，使得当压缩空气打开时制动器处于锁定位置。

    Method for reversing a ground piercing tool
    2.
    发明授权
    Method for reversing a ground piercing tool 失效
    反转地面穿孔工具的方法

    公开(公告)号：US5687803A

    公开(公告)日：1997-11-18

    申请号：US533074

    申请日：1995-09-25

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

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

    IPC分类号： E21B4/14 ,  B25D9/00 ,  E21B7/08

    CPC分类号： E21B4/145

    摘要： The invention provides a method for reversing an impact boring tool of the type having a reversing mechanism actuated by rotation of the compressed air supply hose that enters the tool through a rear end opening. This method includes the initial step of connecting the air supply hose to the tool using a quick-release coupling device including tubular male and female members which are coupled together, one of the members being mounted on the end of the air supply hose and the other mounted on an air inlet conduit of the tool, the coupling device further having a locking sleeve and a ball seated in a first pit in one of the members and configured for insertion into a second pit in the other of the members as the locking sleeve moves over the ball, the locking sleeve being biased to a locked position wherein the ball is seated in both pits thereby preventing rotation of one member relative to the other as well as disengagement of one member from the other. The tool is then operated for earth boring, the direction of travel of the tool is then reversed by rotating the air hose, which rotation is transmitted to the air inlet conduit of the tool by the ball of the coupling device.

    摘要翻译： 本发明提供了一种用于使具有由通过后端开口进入工具的压缩空气供应软管的旋转致动的反向机构的类型的冲击钻具的反向的方法。 该方法包括将空气供应软管连接到工具的初始步骤，该快速释放联接装置包括耦合在一起的管状阳和阴构件，其中一个构件安装在供气软管的另一端 安装在工具的空气入口管道上，联接装置还具有锁定套筒和位于其中一个构件中的第一凹坑中的球，并且构造成当锁定套筒移动时插入另一个构件中的第二凹坑中 在球上，锁定套筒被偏压到锁定位置，其中球座位于两个凹坑中，从而防止一个构件相对于另一个构件的旋转以及一个构件与另一个构件脱离接合。 然后，该工具用于钻孔，然后通过旋转空气软管将工具的行进方向反转，该旋转通过联接装置的球传递到工具的进气管道。

    Method and apparatus for installation of underground pipe
    3.
    发明授权
    Method and apparatus for installation of underground pipe 失效
    地下管道安装方法及装置

    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。

    Method and apparatus for replacement of underground pipe
    4.
    发明申请
    Method and apparatus for replacement of underground pipe 有权

    公开(公告)号：US20050244229A1

    公开(公告)日：2005-11-03

    申请号：US11174180

    申请日：2005-07-01

    申请人： Steven Wentworth ,  Mark Randa ,  Robert Crane

    发明人： Steven Wentworth ,  Mark Randa ,  Robert Crane

    IPC分类号： B23Q5/22 ,  B25D9/00 ,  B25D9/04 ,  B25D9/08 ,  B25D9/16 ,  E03F3/06 ,  E21B20060101 ,  E21B1/00 ,  E21B4/14 ,  E21B7/20 ,  E21B7/30 ,  F16L1/00 ,  F16L1/032 ,  F16L55/165 ,  F16L55/18

    CPC分类号： E21B7/30 ,  E21B4/14 ,  E21B7/206 ,  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.

    Apparatus for on-grade boring
    5.
    发明申请
    Apparatus for on-grade boring 审中-公开
    一级镗孔装置

    公开(公告)号：US20060269361A1

    公开(公告)日：2006-11-30

    申请号：US11500096

    申请日：2006-08-07

    申请人： Steven Wentworth ,  Robert Crane ,  Mark Randa

    发明人： Steven Wentworth ,  Robert Crane ,  Mark Randa

    IPC分类号： E03F3/06

    CPC分类号： H02G1/06 ,  E02F5/10 ,  E21B7/064 ,  E21B7/30 ,  E21B10/40 ,  F16L55/1658

    摘要： A method for installation of an underground pipe includes an initial step of boring a pilot hole through the ground at a predetermined grade angle by extending a drill string having a steerable boring bit mounted thereon through the ground. Upon reaching an end location for the pilot hole, the bit is removed from the drill string, and an expander having a diameter greater than the pilot hole is attached to the drill string, which expander is backed by an impact device such as a pneumatic impactor including a striker that delivers repeated impacts to a rearwardly facing surface of the expander, and by a pipe drawn along behind the expander. The expander is pulled back through the pilot hole at the grade angle while the impactor is operated to aid progress of the expander through the ground and pull the pipe into place behind the expander. Typically in this method the replacement pipe is coupled to a rear end of the expander and the boring bit has a sonde housing containing a sonde attached thereto to indicate to an operator the orientation of a steering face on the boring bit.

    摘要翻译： 一种用于安装地下管道的方法包括：通过将具有安装在其上的可转向钻头的钻柱延伸穿过地面，以预定坡度角镗削引导孔穿过地面的初始步骤。 在到达导向孔的端部位置时，钻头从钻柱中移除，并且具有大于导向孔的直径的膨胀器附接到钻柱，该钻柱由冲击装置例如气动冲击器 包括向膨胀机的朝后的表面施加重复冲击的撞针，以及沿着膨胀机后面拉出的管。 当冲击器被操作以帮助膨胀机通过地面的进展并且将管道拉到扩张器后面的位置时，膨胀器以等级角度被拉回通过导向孔。 通常在该方法中，替换管连接到膨胀机的后端，并且钻头具有一个探测器外壳，该探头外壳包含一个连接到其上的探空器，以向操作者指示钻头上的转向面的取向。