A pipe liner has an elongate duct of thin laminated thermoplastic layers and remains relatively flexible and folded to a flat form. In this form, opposing sides of the duct are pressed into close proximity aided by folding of the duct, so the liner can be stored efficiently. In use, the liner is inserted into a pipe. The liner is subsequently heated and pressed against the inner surface of the pipe to form a close fit. Once the liner cools, it sets in place providing a close fitting pipe lining. In order to ensure adequate and even heating of the pipe liner during installation, heating is provided within the liner. The heating may comprise: a plurality of conductive filaments; electromagnetic susceptor material; or a plurality of magnetic particles.

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.

The subject of the invention is a device for curing inner linings dragged into pipelines in the form of tubes impregnated with a UV resin. The device is equipped with a central segment of a rotating housing (1), having the form of a monolithic solid with cross-section of the shape similar to a square with two opposite sides (2 and 3) being rounded and provided with radiators (21) on their outer arched surfaces, while LEDs (17) are installed on the two other flat faces (14) of the solids; moreover, the rotating housing (1) is coupled, via a gear transmission (40), with an electric motor (39) setting said housing in rotational motion, whereas the housing has also an coaxial straight-through assembly hole (4) for electric connectors. Outer wall of said assembly hole is elongated and has side two-step annular offsets (5 and 6) and (7 and 8), with ball bearings (9) mounted on annular offsets (5 and 7) of the rotating housing (1), whereas a front annular stabilising lid (10) and a rear annular stabilising lid (10) are mounted on the front annular offset (6) and on the rear annular offset (8) of the housing. Upper inner ends of said stabilising rings are provided with annular recesses (11) in which a sleeve-shaped shield (13) made of quarts glass is permanently mounted to protect tightly both LEDs (17) and the two radiators (21) of the rotating housing (1).

A method for lining at least a portion of the inner wall of an upstanding tubular includes inserting a liner sleeve into the tubular. The liner sleeve includes a sleeve of flexible sheet material impregnated with and/or coated with a curable polymer composition. The liner sleeve is held in a tubular and a liner sleeve locating tool is inserted into the tubular and inside the liner sleeve. Operating the liner sleeve locating tool holds the outer surface of the liner sleeve in contact with the inner surface of the tubular; and curing the polymer composition bonds the liner sleeve to the inner wall. Alternatively the liner sleeve may be filled with fluid to hold its outer surface in contact with the tubular to allow curing and bonding

A pressurized push rod system and device for repairing pipe failures from inside the pipe is provided. In one embodiment, a pipe includes a first fitting and a second fitting allowing air to pass through the pipe and into an air bladder. The system includes a pressurized push rod device which attaches to an air bladder and an air compressor to inflate an air bladder within a pipe and thereby apply a patch to a failure within the pipe from inside the pipe.

An in-situ deployment device (20) for transporting an expandable sleeve (4) inside of a pipe (1, 2) and for applying it in on the inside of the pipe (1, 2), wherein the expandable sleeve (4) comprises a backing layer (5) and an adhesive layer (6) and wherein the adhesive layer (6) faces the outside when the sleeve is positioned on the deployment device (20) while being transported through the pipe (1, 2), the deployment device (20) comprising: an inflatable section (21) for carrying and expanding the expandable sleeve (4) and a positioning section (22) for positioning the deployment device (20) at the correct location inside of the pipe (1, 2), wherein the inflatable section (21) and the positioning section (22) are connected such with each other that the two sections (21, 22) can move relative to each other.

The invention relates to a method for preparing a pipe for a continuous spray lining process, the method comprising the following steps: providing an inflatable packer (3); providing an expandable sleeve (4) with a conformable backing layer (5) and an adhesive layer (6); wrapping the expandable sleeve around the packer with the adhesive layer facing the outside; inflating the inflatable packer until it reaches a first diameter (D.sub.1), wherein the first diameter is smaller than the inner diameter (d) of the pipe section, thereby expanding the stretching sleeve, inserting the inflated packer with the expanded sleeve into the pipe (1, 2) until it reaches the pipe section to be sealed; and further inflating the packer until it reaches a second diameter (D.sub.2), thereby further stretching the expandable sleeve; wherein the second diameter is reached when the expanded sleeve touches the inner diameter (d) of the pipe section.

A pipe liner re-flaring system and method for use with a water pipe containing a pipe liner. The pipe liner re-flaring system and method generally include a compression coupling comprising a pair of female compression fittings and a dual ended male compression fitting connected between the female compression fittings. The female compression fittings are adapted to fit over and secure the lined water pipe and a second pipe to be joined with open ends of the pipe liner and the pipe to be joined in direct contact within the male compression fitting. A pipe liner expansion tool and a pipe liner flaring tool are used to expand and re-flare the open end of the pipe liner so that the pipe liner is in contact with an inner wall of the compression coupling to prevent leakage and contact between fluids flowing in the pipes and the material of the pipes and compression coupling.

The present invention relates to a method for rehabilitating lines, in particular sewers, shafts or the like, a curing device being activated or having been activated for curing the curable and/or curing ply, and an advancement of the curing device in the lining sleeve and in particular the power output of the curing device being controlled in an open-loop or closed-loop manner in dependence on the temperature sensed by the temperature measuring device on the outer side of the curable ply.

The present invention relates to a system for curing a lining sleeve comprising a curing device with a radiation source, a lining sleeve with a curable ply and an outer film arranged around the curable ply, a measuring device, which is arranged between the curable ply and the outer film and/or on or at a distance outwardly from the outer side of the curable ply, the measuring device being designed and set up to sense a measured value representative of the curing of the curable ply, and also an open-loop or closed-loop control device, which is designed and set up to control the advancement of the curing device in the lining sleeve and/or the power output of the radiation source of the curing device in an open-loop or closed-loop manner in dependence on the measured values sensed by the measuring device on the outer side of the curable ply.