A system is provided for applying a chemical agent within a pipe. The system includes a skid assembly, moveable longitudinally within the pipe and a delivery nozzle carried by the skid assembly and coupleable to an external chemical agent supply. A dispensing tip is carried by the delivery nozzle, the dispensing tip being configured to deliver a controlled stream of chemical agent within the pipe toward an internal surface of the pipe. The dispensing tip is held above a surface of fluid carried by the pipe while at least a portion of the skid assembly is positioned below the fluid surface. The dispensing tip delivers the controlled stream of chemical agent upwardly away from the fluid surface.

A drilling apparatus has a work robot mounting a drilling blade and moving inside a main pipe and a photodetector for detecting the contour of an opening image formed on the inner surface of a pipe lining material by illumination light. The opening image is scanned, and a two-dimensional image corresponding to the opening image is generated based on the contour points P0 to P8 detected by the photodetector for display on a display unit. The amount of positional deviation between the center of the two-dimensional image on the display unit and the axial center C of the rotary shaft of the drilling blade is calculated, and the pipe lining material is drilled by moving the drilling blade by the amount of positional deviation in a direction in which the positional deviation is eliminated.

The invention relates to a device for curing inner linings of pipelines introduced into them in the form of lining tubes impregnated with a resin. The device includes metal three-piece monolithic body (52) both of the two extreme cylindrical portions (53 and 54) of which have a diameter (1) larger than the diameter (1) of its middle cylindrical portion (56), whereas all components of the body are connected with each other detachably, and both of the two extreme portions (53 and 54) are provided on their cylindrical circumferences with a dozen or so longitudinal ribs (65) each distributed symmetrically on them along the circumferences and having an identical thickness (U) and height (V), and moreover, the ribs are provided with circumferential slit-shaped recesses (66) situated opposite from each other and oriented perpendicularly to horizontal axis (67) of the device forming thus profiles functioning as radiators (68) composed of individual segments (69) separated from each other with elongated recesses with an dilation angle () and with crosswise circumferential slit-shaped recesses (66), whereas the middle portion (56) of the body on its circumference with diameter (1) has also a dozen or so flat facets-chords (74) evenly distributed along the circumference and separated from each other with radially oriented slit-shaped recesses (75) ending on solid core (64) of this portion of the body (52) in which power leads (80) are guided supplying electric current to LEDs (79) and to the front camera unit (40), said recesses forming profiled figures functioning as radiators (76) flat facets (74) of which are connected detachably with plastic strip-shaped plates (78) with LEDs (79) installed in them, and moreover, both of the two extreme portions (53 and 54) of the body (52) are provided with round axial holes (61) ending with bevelled chamfers (62) forming annular slots (63) situated between them and the solid core (64) of the middle portion (56) of the body, whereas the axial holes (61) are coaxial with holes (59) of both of the two profiled shields (58) connected detachably with outer faces of both of the two extreme portions (53 and 54) of the body (52) of the device.

A pig delivery apparatus for delivering a pig to a feeder pipe connected to a header pipe. The pig delivery apparatus includes an opening configured to connect to a feeder pipe opening and a camera with a field of view arranged to provide a view of the feeder pipe opening ahead of the pig delivery apparatus as the pig delivery apparatus is moved within the header pipe towards alignment with the feeder pipe opening.

Embodiments of a multi-diameter foam pig include a first set of radially spaced-apart, longitudinally extending, slots located toward a nose end of the pig and a second set of radially spaced-apart, longitudinally extending, slots located toward a tail end. Each set of slots ends at a band section of the pig so that, together, the two sets of slots do not traverse the entire length of the pig. A standard -length unit version of the foam pig includes only the first set of slots. A set of shorter, intermediate slots, offset in a circumferential direction from the first and second set of slots and partially overlapping those slots, may be included on the band section. Because of the slots, and because of open cell foam, the foam pig decreases or increases in diameter as it enters a different diameter run than the run just traveled.

An apparatus for hydrodemolishing the inside surfaces of an inclined pipe, particularly suited to contiguous pipe sections with access ports between the sections. The fluid supply hose is fed to the hydrodemolition rig inside the pipe from the same side as the winch that controls the movement of the rig. The rig is moved upstream in a scarifying pass, then downstream in a cleaning pass for each section and re-staged at each access port.

Methods and systems for providing cleaning and providing barrier coatings to interior wall surfaces of small diameter nonmetal and composite piping systems in buildings, swimming pools, underground pipes, in-slab piping systems, piping under driveways and various liquid transmission lines. An entire piping system can be cleaned in one single pass by dry particulates forced by air throughout the building piping system by an external generator, and the entire piping system can be coated in one single pass by a machine connected exterior to the piping system. Small pipes can be protected by the effects of water corrosion, erosion and electrolysis, extending the life of piping systems such as plastics, PVC (polyvinyl chloride), composite materials, polybutylene. Coatings can be applied to pipes having diameters of approximately up to approximately 6 so that entire piping systems such as potable water lines, natural gas lines, HVAC piping systems, drain lines, and fire sprinkler systems in single-family homes to apartments to high-rise hotel/resort facilities and office towers, apartment and condominium buildings and schools, can be cleaned and coated to pipes within existing walls. The coating forms at least a 4 mils or greater covering inside of pipes. Buildings can return to service within approximately 24 to approximately 96 hours.

In a mobile system for pipe rehabilitation, a tractor moves a motorized electrical cutter inside a pipe. The cutter is used to remove a blockage from a branch conduit connected to the main pipe. A power management system powers the mobile system, including the cutter, from a direct current power source with an input current having a voltage less than 60V. The power management system powers the electrical cutter by discharging current from the supercapacitor module to the cutter. Power to other components is provided without discharge from the supercapacitor module and is not interrupted by supercapacitor discharge to the cutter. The power management system can include a housing for the supercapacitor module with a first connector at one end for connecting to an umbilical cord and a second connector an opposite end for connecting to the tractor.

The invention relates to a device for curing inner linings of pipelines introduced into them in the form of lining tubes impregnated with a resin. The device includes metal three-piece monolithic body (52) both of the two extreme cylindrical portions (53 and 54) of which have a diameter (1) larger than the diameter (1) of its middle cylindrical portion (56), whereas all components of the body are connected with each other detachably, and both of the two extreme portions (53 and 54) are provided on their cylindrical circumferences with a dozen or so longitudinal ribs (65) each distributed symmetrically on them along the circumferences and having an identical thickness (U) and height (V), and moreover, the ribs are provided with circumferential slit-shaped recesses (66) situated opposite from each other and oriented perpendicularly to horizontal axis (67) of the device forming thus profiles functioning as radiators (68) composed of individual segments (69) separated from each other with elongated recesses with an dilation angle () and with crosswise circumferential slit-shaped recesses (66), whereas the middle portion (56) of the body on its circumference with diameter (1) has also a dozen or so flat facets-chords (74) evenly distributed along the circumference and separated from each other with radially oriented slit-shaped recesses (75) ending on solid core (64) of this portion of the body (52) in which power leads (80) are guided supplying electric current to LEDs (79) and to the front camera unit (40), said recesses forming profiled figures functioning as radiators (76) flat facets (74) of which are connected detachably with plastic strip-shaped plates (78) with LEDs (79) installed in them, and moreover, both of the two extreme portions (53 and 54) of the body (52) are provided with round axial holes (61) ending with bevelled chamfers (62) forming annular slots (63) situated between them and the solid core (64) of the middle portion (56) of the body, whereas the axial holes (61) are coaxial with holes (59) of both of the two profiled shields (58) connected detachably with outer faces of both of the two extreme portions (53 and 54) of the body (52) of the device.

A device for curing inner pipeline linings made with the use of a resin compound cured by electromagnetic radiation, the device being equipped with a central polyhedral body provided with LEDs generating the radiation by emitting waves with lengths from the range 200-500 nm, to cause curing of the resin compound. The LEDs are shielded with an element made of a transparent plastic or quartz glass with a body made of monolithic cylindrical solids having along the whole of length of their outside surfaces with radii identical flat facets-chords symmetrically distributed on the surfaces, to which detachably attached are plastic plates equipped with LEDs emitting electromagnetic radiation with definite range of wavelengths.