Abstract: A new apparatus for repairing a damaged portion of a pipe includes a liner having a tubular sleeve of resin absorbent material that is capable of being stretched circumferentially and a plastic film laminated to an exterior surface of the sleeve. The plastic film contains resinous material in the liner until the liner is stretched circumferentially to thereby breech the integrity of the plastic film and expose the resinous material to a damaged section of pipe in need of repair. A method of lining a damaged section of pipe using the liner is also provided.

Abstract: A method of inserting a cured in-place pipe from a cleanout includes positioning a lining along a portion of a length of a bladder, wherein the lining is frangibly connected to the bladder, inserting the bladder through the cleanout, to a position wherein the lining is within the pipe and does not block the pipe.

Abstract: A method of repairing and renewing a manhole chimney utilizes a circumferentially stretchable liner sleeve which is inserted into the manhole and pressed by an inflatable bladder into engagement with the walls of the manhole chimney. The sleeve is coated with an uncured resin, which is allowed to cure as the sleeve is pressed against the chimney walls, thereby attaching the sleeve to the walls of the manhole chimney. The stretchable sleeve eliminates air spaces between the sleeve and the chimney walls, and precludes formation of undesirable folds in the sleeve. The sleeve stretches circumferentially up to 150% of its unstretched diameter, while having a substantially unstretchable length.

Abstract: A method of repairing and renewing a manhole chimney utilizes a circumferentially stretchable liner sleeve which is inserted into the manhole and pressed by an inflatable bladder into engagement with the walls of the manhole chimney. The sleeve is coated with an uncured resin, which is allowed to cure as the sleeve is pressed against the chimney walls, thereby attaching the sleeve to the walls of the manhole chimney. The stretchable sleeve eliminates air spaces between the sleeve and the chimney walls, and precludes formation of undesirable folds in the sleeve. The sleeve stretches circumferentially up to 150% of its unstretched diameter, while having a substantially unstretchable length.

Abstract: A method of inserting a cured in-place pipe from a cleanout includes positioning a lining along a portion of a length of a bladder, wherein the lining is frangibly connected to the bladder, inserting the bladder through the cleanout, to a position wherein the lining is within the pipe and does not block the pipe.

Abstract: A method of inserting a cured in-place pipe from a cleanout includes positioning a lining along a portion of a length of a bladder, wherein the lining is frangible connected to the bladder, inserting the bladder through the cleanout, to a position wherein the lining is within the pipe and does not block the pipe.

Abstract: The method for identifying lateral pipes includes printing identifying indicia on the interior surface of a liner assembly positioned adjacent the lateral pipe. The apparatus includes the liner assembly in place with the identifying indicia visible from the interior of the pipe line.

Abstract: The present invention relates to a new liner for repairing a damaged portion of a pipe. A lining tube formed from a non-resin absorbent material has an exterior surface adapted to receive a curable resin and contact an interior wall of the pipe. The present invention also includes a main/lateral liner assembly for repairing the junction between main and lateral pipes using a non-resin absorbent liner for at least a portion of the lining.

Abstract: A fiber reinforced non-stick plastic bladder is provided. The bladder preferably includes a bladder body formed of a fiber reinforcing material layer with a coating on the bladder body made of a thermoplastic. The coating preferably has elastomeric properties and is semi-transparent. Methods of lining pipe using the new bladder are also provided.

Abstract: The present invention includes a device and method for reinforcing the portions of an inflation bladder not contained by a liner in pipeline renewal applications. A liner/bladder assembly is provided wherein the liner is positioned relative to the bladder such that a portion of the bladder having a greater wall thickness extends beyond the ends of the liner. The present invention also includes a device and method for repairing the junction of a main pipe and the lateral pipe with bladders reinforced in areas unconstrained by the liners.

Abstract: A liner tube is provided for repairing either a single pipe line or a main pipe line having a lateral pipe line connected thereto. The liner tube assembly includes a liner tube impregnated with a liquid material capable of curing and hardening. The liner tube includes a gasket or band positioned about the juncture of the pipe lines. The gasket or bands form a tight seal between the liner tube and the pipe line.

Abstract: A method of inserting a cured in-place pipe from a cleanout includes positioning a lining along a portion of a length of a bladder, wherein the lining is frangibly connected to the bladder, inserting the bladder through the cleanout, to a position wherein the lining is within the pipe and does not block the pipe.

Abstract: The method for identifying lateral pipes includes printing identifying indicia on the interior surface of a liner assembly positioned adjacent the lateral pipe. The apparatus includes the liner assembly in place with the identifying indicia visible from the interior of the pipe line.

Abstract: A method of inserting a cured in-place pipe from a cleanout includes positioning a lining along a portion of a length of a bladder, wherein the lining is frangibly connected to the bladder, inserting the bladder through the cleanout, to a position wherein the lining is within the pipe and does not block the pipe.

Abstract: A lining apparatus and method is provided that obviates the need for a bladder to press the liner against the host pipe. The lining apparatus may include an extension tube sealed to the liner at one of its ends with an inversion mechanism attached to the other end of the liner for inverting the liner to its desired position within the pipe to be repaired. The lining apparatus can also avoid the use of an extension tube by temporarily closing the liner during the inversion process so that the liner can be inflated when pressurized by a fluid and then sealing an open end of the liner after it has been inverted into the pipe.

Abstract: The method for identifying lateral pipes includes printing identifying indicia on the interior surface of a liner assembly positioned adjacent the lateral pipe. The apparatus includes the liner assembly in place with the identifying indicia visible from the interior of the pipe line.

Abstract: A method of inserting a cured in-place pipe from a cleanout includes positioning a lining along a portion of a length of a bladder, wherein the lining is frangibly connected to the bladder, inserting the bladder through the cleanout, to a position wherein the lining is within the pipe and does not block the pipe.

Abstract: A method of inserting a cured in-place pipe from a cleanout includes positioning a lining along a portion of a length of a bladder, wherein the lining is frangibly connected to the bladder, inserting the bladder through the cleanout, to a position wherein the lining is within the pipe and does not block the pipe.

Abstract: The method for identifying lateral pipes includes printing identifying indicia on the interior surface of a liner assembly positioned adjacent the lateral pipe. The apparatus includes the liner assembly in place with the identifying indicia visible from the interior of the pipe line.

Abstract: The method for identifying lateral pipes includes printing identifying indicia on the interior surface of a liner assembly positioned adjacent the lateral pipe. The apparatus includes the liner assembly in place with the identifying indicia visible from the interior of the main pipe line.