A fitting element for use in rehabilitation of pipelines with a liner. The fitting element is a composite article of reinforcing fibers and a resin composition. A first part of the fitting element has reinforcing fibers and a substantially fully cured resin composition, and a second part has dry reinforcing fibers that can accept a curable resin composition that optionally originates from the liner to form a functional joint between the fitting element and the liner. An interface layer of the fitting element structurally connects the first and the second part. A method for manufacturing the fitting element, as well as a method for rehabilitation of a pipeline with a tubular liner and a joined assembly of the fitting element and a liner for use in rehabilitating a pipeline.

On example provides a containment sleeve for a pressurized piping system including a main body comprising a pliable fabric extending in longitudinal and transverse directions. The main body includes an exterior major surface and an opposing interior major surface, first and second opposed transverse edges, first and second opposed longitudinal edges, and a number of pleats extending from the interior major surface, each pleat having opposing sides of the longitudinal pleat being sewn together with breakaway stitching at a base of the pleat at the interior major surface. A number of transversely extending straps disposed on the exterior major surface between the first and second longitudinal edges, the straps to secure the main body about a portion of the piping system with the interior major surface facing the piping system.

A trench-less plug assembly having a fluid release element, further including: a top retaining ring, a bottom retaining ring, a plurality of rods vertically connecting the top retaining ring to the bottom retaining ring. A retaining plug is adapted to traverse vertically along the plurality of rods, and a main fitting adapted for receiving the bottom retaining ring. A gasket is disposed between the main fitting and the retaining plug. The plurality of rods engage the retaining plug with threads, whereby the retaining plug is positioned vertically between the top retaining ring and the bottom retaining ring by rotational movement of the retaining plug. The main fitting is adapted to attach to a main pipeline, and the main fitting is adapted to receive a riser enclosing the fluid release element. In one example, the main fitting attaches to a main pipeline using a saddle.

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.

An underground pipe repair device is for a joint between a service pipe and a branch pipe. The underground pipe repair device may include a first T-shaped joint liner having a base portion extending laterally in the service pipe, and an arm portion extending vertically into the branch pipe. The underground pipe repair device may also include an annular body aligned with and being radially spaced from an opening for the branch pipe and coupled to the first T-shaped joint liner for enabling reinstatement of the branch pipe opening without damaging a liner in the service pipe or the first T-shaped joint liner.

An underground pipe repair device is for a joint between a service pipe and a branch pipe. The underground pipe repair device may include a first T-shaped joint liner having a base portion extending laterally in the service pipe, and an arm portion extending vertically into the branch pipe. The underground pipe repair device may also include an annular body aligned with and being radially spaced from an opening for the branch pipe and coupled to the first T-shaped joint liner for enabling reinstatement of the branch pipe opening without damaging a liner in the service pipe or the first T-shaped joint liner.

A method and means for repairing the junction of a main and lateral pipe are provided. A repair assembly includes a launcher device, a bladder assembly surrounding the launcher device, and a liner assembly surrounding the bladder assembly. The bladder assembly is frangibly connected to the launcher device to maintain the position of the bladder assembly relative to the launcher device during transport and positioning of the assembly. Likewise, the liner assembly, which includes main and lateral liner members, is frangibly connected to the bladder assembly. The frangible connections allow the position of the repair assembly to be maintained. The frangible connections can be broken, such as by inflation and/or tearing or pulling apart of the components of the repair assembly. Thus, the invention provides a way to mitigate the movement of components of the repair assembly during transport and positioning of the repair assembly.

A method and means for repairing the junction of a main and lateral pipe are provided. A repair assembly includes a launcher device, a bladder assembly surrounding the launcher device, and a liner assembly surrounding the bladder assembly. The bladder assembly is frangibly connected to the launcher device to maintain the position of the bladder assembly relative to the launcher device during transport and positioning of the assembly. Likewise, the liner assembly, which includes main and lateral liner members, is frangibly connected to the bladder assembly. The frangible connections allow the position of the repair assembly to be maintained. The frangible connections can be broken, such as by inflation and/or tearing or pulling apart of the components of the repair assembly. Thus, the invention provides a way to mitigate the movement of components of the repair assembly during transport and positioning of the repair assembly.

A rehabilitated pipe system and a method for rehabilitating a pipe system. A lines a host pipe and a coupling member configured for being operatively coupled to a mechanical coupler is positioned adjacent the host pipe so that a connecting section of the liner extends into the coupling member. The connecting section of the liner is adhesively bonded to the coupling member, and the mechanical coupler is installed to fluidly couple the liner to another fluid conducting structure. The connecting section of the liner can be formed in a portion of the host pipe that is removed after lining. The coupling member can be flanged or include a lateral coupling tube. The mechanical coupler can, e.g., be a ductile iron coupler or a bolt.

A rehabilitated pipe system and a method for rehabilitating a pipe system. A lines a host pipe and a coupling member configured for being operatively coupled to a mechanical coupler is positioned adjacent the host pipe so that a connecting section of the liner extends into the coupling member. The connecting section of the liner is adhesively bonded to the coupling member, and the mechanical coupler is installed to fluidly couple the liner to another fluid conducting structure. The connecting section of the liner can be formed in a portion of the host pipe that is removed after lining. The coupling member can be flanged or include a lateral coupling tube. The mechanical coupler can, e.g., be a ductile iron coupler or a bolt.