Cables, such as telecommunications cables, fiber cables, conduits, and the like, can be installed in existing pipe systems to avoid the need for trenches. However, to aid in keeping the cables out of the flow of the pipes of the pipe system, the cable or cables are positioned adjacent a wall of the pipe. To hold or otherwise secure the cables in place, aspects of CIPP pipe repair are used in place of mechanical fasteners. This can take many forms, including, but not limited to, curable resins, resin impregnated liners or liner straps, T-liners, gaskets, etc. The resin or resinous liners can be inflated towards the wall of the pipe to hold the cables in place between the curable resin and the wall of the pipe.

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.

Disclosed is a pipeline pulling tool having an elongate housing. First and second roller wheel sections have at least two freely rotating roller wheels extending out from a sidewall of the housing. An attachment for a tool string is fixed to one of the roller wheel sections. A main section with a retractable propulsion wheel and at least one actuator for actuating the propulsion wheel between an extended position, out from the sidewall of the housing, and a retracted position, inside the housing, is located between the first roller wheel section and the second roller wheel section. A method of actuating a pipeline pulling tool is also disclosed.

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.

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.

Method for installing a cable into a duct, comprising the steps of: determining a maximum pressure, setting a leaking mode of a leaking plug to start at a leaking pressure drop equal to or lower than the maximum pressure, attaching the leaking plug to a foremost end of the cable, introducing the foremost end of the cable into the duct, supplying a pressurized liquid into the duct: at a supply port, and at a supply pressure, so that the cable is pulled by the leaking plug, before the foremost end has reached the second extremity, exceeding the leaking pressure drop at a location close to the leaking plug.

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.

A submersible vehicle is provided which includes a housing, an optical fiber coupled with the housing and communicatively coupled with a data acquisition system, and a propulsion system. The propulsion system is configured to propel the submersible vehicle in a fluid at a velocity. The optical fiber is configured to be released at a release rate equal to or greater than the velocity of the submersible vehicle.

The present invention relates to a device for centring and pulling a tool in a pipeline, the device comprising expanding arms, with each expanding arm comprises a wheel suitable for making contact with an inside wall of a pipeline, wherein each wheel comprises at least one magnetic element.

Apparatus for moving one or more processing devices relative to an object to be processed, comprising: first and second mounting units configured to be secured in a fixed position relative to the object to be processed and between which one or more tension members are mounted under tension; one or more carriages respectively connected to the one or more tension members, each of the carriages configured to accommodate a respective processing device; and a drive unit configured to move the one or more tension members so as to move the one or more carriages relative to the object.