Cable puller and method
    31.
    发明授权

    公开(公告)号:US10167986B2

    公开(公告)日:2019-01-01

    申请号:US15273294

    申请日:2016-09-22

    Inventor: Michael Tjader

    Abstract: A cable puller and associated methods are shown. Useful example methods include pipe bursting using cable pullers as shown. Cable pullers and methods shown provide a mechanical advantage that increases an amount of cable pulled in one cycle. Selected examples are shown that include a pulley located on a distal end of a moving portion of an extending and contracting beam. The pulley and the mechanical advantage it supplies helps to improve the efficiency of the cable puller and reduce manufacturing cost of the cable puller.

    DEVICE AND METHOD TO SPLIT PIPE NEAR UTILITIES

    公开(公告)号:US20180163913A1

    公开(公告)日:2018-06-14

    申请号:US15879051

    申请日:2018-01-24

    Inventor: Michael Tjader

    CPC classification number: F16L55/1658 F16L55/18

    Abstract: A splitter system and methods are shown. Examples of splitter systems provide limited possibility of damage to adjacent utilities in the ground. Further, examples of splitter systems relax a shape memory of split pipe, which in turn reduces friction in a splitting operation. Configurations are further shown that provide lubrication to splitting operations in a number of locations along a splitter system. Configurations are also shown that provide electrical isolation to cutting blades.

    Pipe replacement system
    33.
    发明授权

    公开(公告)号:US09885441B2

    公开(公告)日:2018-02-06

    申请号:US14679384

    申请日:2015-04-06

    Inventor: Michael Tjader

    CPC classification number: F16L55/18 F16L1/028 F16L55/1658

    Abstract: Pipe replacement devices, and systems are shown. Devices and systems may include jointed cutters and floating cutters to navigate difficult pipe replacement conditions. Devices and systems may also include replacement pipe with pre-installed supply hoses, such as lubricant supply and/or pneumatic supply hoses. Methods of pipe replacement are also described, including splitting old pipe and pulling in new pipe behind the equipment as splitting progresses.

    Pipe splitting apparatus with cable engagement system

    公开(公告)号:US09631763B2

    公开(公告)日:2017-04-25

    申请号:US14275385

    申请日:2014-05-12

    Inventor: Michael Tjader

    CPC classification number: F16L55/18 F16L55/1658

    Abstract: Pipe splitting apparatuses and systems including a replaceable blade, and methods therefor, are provided. In various examples, a cable retention and release mechanism is configured to releasably engage a cable and includes one or more segments of a pipe splitting apparatus including a cable passage. A segmented collet includes tapered segments and is disposed within a tapered portion of a cable passage of the one or more segments. Channel surfaces of the tapered segments together form a cable channel through the segmented collet. The cable channel is configured to widen in a disengaged position of the segmented collet and narrow in an engaged position of the segmented collet. A spring is disposed within the spring pocket of the one or more segments to bias the segmented collet distally in the engaged position.

    JOINTED PIPE SPLITTER WITH PNEUMATIC HAMMER
    36.
    发明申请
    JOINTED PIPE SPLITTER WITH PNEUMATIC HAMMER 有权
    带有气动锤的接头管接头

    公开(公告)号:US20170037993A1

    公开(公告)日:2017-02-09

    申请号:US15297768

    申请日:2016-10-19

    Inventor: Michael Tjader

    Abstract: A pipe splitting assembly includes an articulating hammer nose assembly having a pipe splitting cutter and a rotatable joint coupled with the pipe splitting cutter. A pneumatic hammer is distal to the articulating hammer nose assembly. The pneumatic hammer is configured to drive the articulating hammer nose assembly proximally away from the pneumatic hammer. The rotatable joint is coupled between the pipe splitting cutter and the pneumatic hammer, and the articulating hammer nose assembly is rotatable into one or more angles relative to the pneumatic hammer through the rotatable joint. A cable coupling is interposed between the pneumatic hammer and the articulated hammer nose assembly. The cable coupling is configured to attach a cable to the pipe splitting assembly. The cable coupling and the rotatable joint are configured to transmit to the pipe splitting cutter a compression force from the cable coupling and dynamic percussive forces from the pneumatic hammer.

    Abstract translation: 管道分裂组件包括铰接锤头组件,其具有分配切割器和与分配切割器联接的可旋转接头。 气动锤在铰接锤头组件的远侧。 气动锤被构造成驱动铰接锤头组件向近侧远离气动锤。 可旋转接头联接在分割切割器和气锤之间,并且铰接锤头组件可相对于气锤通过可旋转接头旋转成一个或多个角度。 电缆联轴器插入在气锤和铰接式锤头组件之间。 电缆耦合器被配置为将电缆附接到分配组件。 电缆联轴器和可旋转接头构造成将来自电缆联轴器的压缩力和来自气动锤的动态冲击力传递到分配切割器。

    PIPE SPLITTING APPARATUS WITH REPLACEABLE BLADE
    37.
    发明申请
    PIPE SPLITTING APPARATUS WITH REPLACEABLE BLADE 审中-公开
    带可更换刀片的管道分离设备

    公开(公告)号:US20170030506A1

    公开(公告)日:2017-02-02

    申请号:US15295576

    申请日:2016-10-17

    Inventor: Michael Tjader

    Abstract: Pipe splitting apparatuses and systems including a replaceable blade, and methods therefor, are provided. In various examples, a pipe splitting apparatus includes an outer surface including a recess. A blade including a portion is disposed within the recess. A hardenable material is disposed within the recess. The hardenable material is configured to flow upon application to fill empty space within the recess and at least partially around the portion of the blade disposed within the recess. The hardenable material is further configured to harden after application to secure the portion of the blade within the recess and fix the blade to the pipe splitting apparatus.

    Abstract translation: 提供了包括可更换刀片的管道分割设备和系统及其方法。 在各种示例中,管道分裂装置包括包括凹部的外表面。 包括一部分的刀片设置在凹槽内。 可硬化材料设置在凹部内。 可硬化材料被构造成在施加时流动以填充凹部内的空白空间,并且至少部分地围绕设置在凹部内的叶片的部分。 可硬化材料进一步构造成在施加之后硬化以将叶片的该部分固定在凹部内并将叶片固定到分割设备。

    PORTABLE WINCH
    38.
    发明申请

    公开(公告)号:US20130082224A1

    公开(公告)日:2013-04-04

    申请号:US13686617

    申请日:2012-11-27

    Inventor: Michael Tjader

    Abstract: A portable winch and method of use is shown. One advantage of winches shown includes an ability to lower a boom or boom sections into limited access exit pit for winching operations such as pipe bursting. Sectional boom designs shown provide the ability to easily raise and lower a boom large distances without the need for a single long boom. Selected winch designs shown include flexible inserts between the boom and the winch frame that help resist damage from unforeseen shifting of the device during operation. Designs and methods shown also include multiple pulleys on a boom end unit. Fasteners are shown that reduce build up of debris.

    Lubrication system for pipe bursting

    公开(公告)号:US12247688B2

    公开(公告)日:2025-03-11

    申请号:US18108834

    申请日:2023-02-13

    Inventor: Michael Tjader

    Abstract: A pipe pulling lubrication apparatus includes a pipe anchor having an anchor body. The anchor body includes a first coupling feature near an anchor body proximal portion and a distal pipe coupling feature near an anchor body distal portion. The distal pipe coupling feature is configured to couple and position a replacement pipe exterior surface near an anchor body exterior surface. The lubrication apparatus further includes a lubrication system including a lubricant conduit extending within the anchor body from the distal pipe coupling feature toward an anchor body intermediate portion between the first coupling feature and the distal pipe coupling feature. The lubrication system includes a lubricant distributor having one or more lubricant passages extending from the lubricant conduit toward the anchor body exterior surface, the lubricant distributor is configured to deliver a lubricant to the replacement pipe exterior surface.

    FRAME FOR TRENCHLESS PIPE REPLACEMENT SYSTEM AND METHOD

    公开(公告)号:US20250027581A1

    公开(公告)日:2025-01-23

    申请号:US18904291

    申请日:2024-10-02

    Inventor: Michael Tjader

    Abstract: A pipe replacement system and cable guide frame are shown. Configurations are shown that include plurality of guide pulleys attached to the cable guide frame to define a curved path between a pipe to be replaced and a cable pulling system. Configurations are shown where a pipe breaking tool is pulled over the plurality of guide pulleys for ease of removal after a replacement operation. Configurations are also shown that include a stationary splitter adjacent to the cable pulling system to prevent jamming of the cable pulling system.

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