An apparatus for installing multiple strands of hose below a surface of terrain is provided. The apparatus comprises a chassis and rotating trenching blade assemblies connected to the chassis. The trenching blade assemblies are configured to dig parallel trenches when the apparatus is pulled along the terrain. Curved hose guides are connected to the chassis in trailing positions behind the trenching blades. Each hose guide receives hose from a hose reel on reel mounts connected to the chassis and deposits the hose into a trench dug by a trenching blade assembly. Trench fillers connected to the chassis trail the hose guides. Each trench filler is aligned with a respective hose guide and comprises a number of blades configured to push soil excavated from a trench back into the trench when the apparatus is pulled along the terrain.

An apparatus for installing multiple strands of hose below a surface of terrain is provided. The apparatus comprises a chassis and rotating trenching blade assemblies connected to the chassis. The trenching blade assemblies are configured to dig parallel trenches when the apparatus is pulled along the terrain. Curved hose guides are connected to the chassis in trailing positions behind the trenching blades. Each hose guide receives hose from a hose reel on reel mounts connected to the chassis and deposits the hose into a trench dug by a trenching blade assembly. Trench fillers connected to the chassis trail the hose guides. Each trench filler is aligned with a respective hose guide and comprises a number of blades configured to push soil excavated from a trench back into the trench when the apparatus is pulled along the terrain.

This invention relates to an improved component (10) for replacing pipes, in particular underground pipes. The invention also relates to a trenchless method of removing pipes using the improved component, and a kit of parts for use in removing pipes. The improved component (10) is securable to a cable (14) and has a body (30) with a recess (26) to accommodate the end (18) of the pipe (12) in use, the recess being surrounded by a collar (24). The improved component is a two-part component, the first part (20) being securable to the cable (14) and the second part (22) including the body, the two parts being made of different materials. There is also provided a kit of parts including cooperating alignment elements of standard dimensions, and a method of removing an underground pipe.

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 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.

A pull head assembly for quick attachment to a flexible pipe is provided. The pull head assembly has three subsections. A collet assembly is mounted to the end of a flexible pipe. A mandrel assembly is adapted to go over the collet assembly. A lead screw assembly positions the mandrel assembly over the collet assembly and acts as an attachment point for pulling the flexible pipe and pull head assembly from one location to another. After pulling the flexible pipe and pull head assembly from one location to another, the mandrel assembly and lead screw assembly can be removed, and the collet assembly can act as a temporary fitting for the flexible pipe.

A pull head assembly for quick attachment to a flexible pipe is provided. The pull head assembly has three subsections. A collet assembly is mounted to the end of a flexible pipe. A mandrel assembly is adapted to go over the collet assembly. A lead screw assembly positions the mandrel assembly over the collet assembly and acts as an attachment point for pulling the flexible pipe and pull head assembly from one location to another. After pulling the flexible pipe and pull head assembly from one location to another, the mandrel assembly and lead screw assembly can be removed, and the collet assembly can act as a temporary fitting for the flexible pipe.

The present application relates to a cable laying device (100). The cable laying device is used for laying a cable, and comprises: a cable laying part (10) comprising a base section (11) and an extension section (12); a turnover mechanism (20) and a positioning adjustment mechanism (30), wherein, the base section (11) and the extension section (12) are connected rotatably relative to each other at their longitudinal ends; the positioning adjustment mechanism (30) is connected to the base section and comprises a rotating assembly (31), wherein the rotating assembly (31) drives the cable laying part to rotate; and the turnover mechanism (20) connects the extension section (12) and the base section (11), and drives the extension section (12) to turn over relative to the base section (11).

The present application relates to a cable laying device (100). The cable laying device is used for laying a cable, and comprises: a cable laying part (10) comprising a base section (11) and an extension section (12); a turnover mechanism (20) and a positioning adjustment mechanism (30), wherein, the base section (11) and the extension section (12) are connected rotatably relative to each other at their longitudinal ends; the positioning adjustment mechanism (30) is connected to the base section and comprises a rotating assembly (31), wherein the rotating assembly (31) drives the cable laying part to rotate; and the turnover mechanism (20) connects the extension section (12) and the base section (11), and drives the extension section (12) to turn over relative to the base section (11).

A system for installing continuous elongated tubular material (e.g. fiber optic cable) in the ground is provided. The system utilizes an agricultural tractor, preferably having rubber tires or tracks, to draw a plow for creating a trench in the ground in which to install the tubular material. The system is equipped with one or more of a specialized plow mount, an infinitely variable speed transmission on the tractor, a “power beyond” valve on the tractor and global positioning systems on the tractor and plow to more effectively install the tubular material in the ground.