A pipe repair device includes a body defining a first body end, a second body end, and a middle body section therebetween; a pivotable arm attached to the body, wherein the pivotable arm is pivotable relative to the body to radially reposition the pivotable arm relative to the body; a locomotion subsystem configured to drive the pipe repair device through a pipe, the locomotion subsystem mounted to the pivotable arm and configured to engage an inner surface of the pipe; and a stent mounted to the body, the stent comprising a sealing layer and a spring.

A pipe repair device includes a body defining a first end and a second end opposite the first end; a stent configurable in a compressed configuration and an expanded configuration, the stent mounted to the body in the compressed configuration; and a locomotion subsystem configured to drive the pipe repair device through a pipe, the locomotion subsystem comprising a steering rod extending from the first end of the body and configured to engage an inner surface of the pipe.

A pipe repair device includes a body defining a first body end, a second body end, and a middle body section therebetween; a pivotable arm attached to the body, wherein the pivotable arm is pivotable relative to the body to radially reposition the pivotable arm relative to the body; a locomotion subsystem configured to drive the pipe repair device through a pipe, the locomotion subsystem mounted to the pivotable arm and configured to engage an inner surface of the pipe; and a stent mounted to the body, the stent comprising a sealing layer and a spring.

The disclosed invention provides a device and method to detect leaks in pipelines and heal them instantly using twin ball technology. The device comprises two twin balls of novel construction inserted into the pipeline. The sensor ball receives acoustical data through internal sensors. Once the threshold of the sound level is surpassed, the smart ball will send a signal to the second flowing ball. The second ball will flow towards the leaking outlet and eject a healing fluid to close the leak and prevent further damage. The sensor ball will also alert the user to the size and location of the leak via Wi-Fi monitoring and text messaging. This twin balls technology could be used in pipelines of varying sizes and flow rates.

A remotely controllable pipe rehabilitation device having a base, a water opening, a dry pipe rehabilitation material opening, a first pipe rotatably attached to the base and coupled to the dry pipe rehabilitation material opening, a motor, a drive member coupled to the motor and the first pipe, a rotatable delivery pipe located adjacent to a first portion of the base and coupled to the first pipe and having a nozzle, a water with a water outlet to rotate with the nozzle, a first hose from the first water opening to the second water opening, a second hose from the water outlet to the nozzle, and a remote control disposed remotely from the area to be rehabilitated, the remote control to allow a user to operably maneuver the motor into a desired lateral orientation.

A sealing method, comprising: introducing a moving stream of curable material into an opening; and curing a portion of the moving stream of curable material flowing back out of the opening to form a cured layer of curable material. The cured layer restricts or prevents at least a further portion of the curable material from flowing back out of the opening.

The application provides a system comprising a water blocking device, a support structure, an injection machine, a resin impregnated lining hose and a light curing machine. The water blocking device blocks water and creates space for repairing. The support structure jacks up the deformation of pipelines. The injection machine injects polymer into the gap between the support structure and the HDPE pipes and the defective soil. A resin impregnated lining hose is inflated to attach to the support structure before being cured by UV lights. A CIPP (Cured-in-place pipe) liner is formed. The application carries out the trenchless rehabilitation of deformation of HDPE pipelines by integrating the method of the lining steel ring supporting, polymer injection and CIPP process. The defective soils are stabilized and further defects after repairing is avoided. The application is advantageous to the trenchless rehabilitation for double wall corrugated pipeline (diameter over 800 mm).

The application provides a system comprising a water blocking device, a support structure, an injection machine, a resin impregnated lining hose and a light curing machine. The water blocking device blocks water and creates space for repairing. The support structure jacks up the deformation of pipelines. The injection machine injects polymer into the gap between the support structure and the HDPE pipes and the defective soil. A resin impregnated lining hose is inflated to attach to the support structure before being cured by UV lights. A CIPP (Cured-in-place pipe) liner is formed. The application carries out the trenchless rehabilitation of deformation of HDPE pipelines by integrating the method of the lining steel ring supporting, polymer injection and CIPP process. The defective soils are stabilized and further defects after repairing is avoided. The application is advantageous to the trenchless rehabilitation for double wall corrugated pipeline (diameter over 800 mm).

A in-service trenchless repair method for disconnection of a drainage pipe includes steps of: detecting the disconnection by a pipe sonar, and making a traction rope; pulling a hollowed cylindrical airbag to the disconnection according to the mark on the traction rope; controlling an airbag valve by an air compressor on the ground to inflate the hollowed cylindrical airbag, so that the hollowed cylindrical airbag is in close contact with pipeline wall after inflation; drilling a grouting hole on the ground surface directly above and on both sides of the disconnection until reaching the disconnection, and inserting a grouting pipe into the grouting hole; then injecting a double-slurry quick-curing repair material into the disconnection through a grouting system on the ground and waiting for curing; deflating the hollowed cylindrical airbag and pulling out by the traction rope.

Systems and methods for pipe lining systems and methods of use are described. Systems and methods may include a CIPP lateral liner that is inserted into a bladder forming a CIPP liner assembly that can be inserted into a pipe line for a pipe repair. CIPP liner assembly can include a membrane that produces superior results compared to the prior art. A backing ring may be used with these systems and methods.