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 of hydrophilic paste 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 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 of hydrophilic paste 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 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.

Abstract: A liner tube is provided for repairing 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 junction 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. Hydrophilic containment bands are positioned over a portion of the gasket or junction band and around the main liner on either side of the juncture of the pipe lines.

Abstract: A method and assembly for establishing or repairing the connection between a main pipe and a lateral pipe. The assembly includes a pipe saddle device having a curved plate with a first side and a second side. The second side of the curved plate is adapted to engage the main pipe. A gasket is combined with the second side of the curved plate and adapted to help create a seal between the curved plate and the pipe. The assembly further includes mechanical fasteners for securing the pipe saddle device to the pipe.

Abstract: The pipe access device is comprised of a curved plate adapted to engage an underground pipe along an arc of the outer surface of the pipe, and a boss extending upwardly from the curved plate about an aperture in the curved plate. The boss is adapted to receive an extension pipe. The boss includes a flange adapted to engage ad end of the extension pipe. A gasket is combined with the flange to help seal the connection between the boss and the extension pipe. The pipe access device is for use in providing access to the buried pipe that requires minimal excavation and disruption of the soil.

Abstract: An assembly and method are provided for repairing either a single pipe line or a main pipe line having a lateral pipe line connected thereto. The assembly includes a liner impregnated with a liquid material capable of curing and hardening. The liner is combined with a band assembly having a first band member and a second band member combined with connecting members. The band assembly helps forma tight seal between the liner and the pipe line.

Abstract: A method of repairing portions of pipes including a main pipe and lateral pipes extending between a first and second manhole, including providing a liner assembly having both a main liner member and a lateral liner tube extending from the main liner member and capable of everting from within the main liner member to a position in one of the one or more lateral pipes, impregnating a portion of the liner assembly with a material capable of curing and hardening, positioning the liner assembly a distance from the first manhole, and everting the main liner member within the main pipe while simultaneously everting at least one of the one or more lateral liner tubes into one of the one or more lateral pipes. The predetermined distance enables the main liner tube to line the portion of the pipe in need of repair in the pipe without lining the entire pipe.

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 of hydrophilic paste 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 and assembly for sealing an opening in a pipe wherein the opening is a damaged/cracked section in a length of pipe or the junction between a main pipe and a lateral pipe. The assembly includes a sealing member attached to a positioning tube such as preliner. The sealing member is combined with the preliner so that when the assembly is positioned in the main pipe, the sealing member corresponds with the opening. The sealing member is sized such that it extends along the main pipe on opposite sides of the opening. A mainline liner is installed within the preliner. In some embodiments, after the mainline liner cures and hardens, a cutter is used to cut an opening in the mainline liner, preliner, and sealing member to reinstate service to the lateral pipe. The sealing member remains in place around the periphery of the lateral pipe junction to act as a water stop at the opening.

Abstract: A liner assembly and method for lining a damaged pipe junction between a main and lateral pipe is provided. The liner assembly includes a main liner member and a lateral liner tube. A collar disposed near the juncture between the main liner member and lateral liner tube is impregnated with a liquid hydrophobic or hydrophilic material capable of curing in a flexible or rigid state with the material expanding in the presence of water. The hydrophobic or hydrophilic material can also be applied without the use of the collar. When the liner assembly is pressed against the main and lateral pipes, a portion of the hydrophilic or hydrophobic material is forced into the damaged pipe junction.

Abstract: A repair assembly and method for repairing a damaged portion of a pipe. The repair assembly includes a launcher having a positioning member with a first end and a second end. The launcher further includes a first member secured at or near the first end of the positioning member and a second member combined with the positioning member between its first end and its second end. A bladder assembly and a liner assembly are secured to the launcher between the first member and the second member. The second member may include an opening adapted to receive the positioning member so that the second member is slidable along the length of the positioning member to adjust the distance between the first member and the second member and help accommodate different lengths of bladders and liners. The second member may also include an inlet/outlet opening adapted to be connected to a hose for pressurizing or deflating the bladder with air or any other suitable fluid.

Abstract: A method and apparatus for providing access to a buried pipe by excavating the ground to expose the pipe then attaching an access assembly to the pipe. The access assembly includes a curved plate with an aperture therein substantially aligned with an opening in the pipe. The access assembly has multiple sweeps, each sweep combined with a riser pipe. A first sweep is combined with the curved plate and substantially aligned with the aperture in the curved plate. A second sweep is in communication with the first sweep through an opening, the second sweep has an internal wall with an upper wall portion. The wall in the second sweep is angled downward and inward from the upper wall portion toward the opening so that components inserted into its riser pipe travel downward through the riser pipe then inward toward the aperture as the component passes through the second sweep.

Abstract: A method and assembly is provided for repairing and sealing off the juncture between two pipes. The assembly includes a main liner member, a bladder assembly, and a sealing member. The main liner member is made of resin absorbent material. The sealing member may be a hydrophilic rubber gasket or gasket of similar impermeable compressible material. The sealing member is secured to the liner. The sealing member surrounds a portion of the main liner member and is positioned between the host pipes and the liner assembly in operation. The main liner is moved through the main pipe line to a position where the sealing member and the main liner extend across the access opening to the lateral pipe line. The bladder is expanded to urge the liner and sealing member against the pipe then the liner cures and hardens to permanently seal the junction between the main pipe and lateral pipe.

Abstract: 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.

Abstract: A method and apparatus for repairing a pipe system including a main pipe extending between a first and second manhole and one or more lateral pipes extending from the main pipe is provided. Aspects of the invention include the use of a main liner member having a plurality of lateral liner tubes in fluid connection and extending from the main liner member. The main liner member is used to line a main pipe, while the multiple lateral liner tubes extend into separate lateral pipes extending in various orientations from the main pipe. This method and apparatus provides for a single assembly to be able to line multiple pipes, which reduces time and cost for pipe repair.

Abstract: An apparatus and method is provided for repairing an underground structure such as a pipe or manhole. The apparatus includes a liner assembly made of resin absorbent material. Some embodiments may further include a bladder assembly to help position the liner and press the liner against the walls of the underground structure. A sealing member is positioned in the underground structure. In some embodiments the sealing member is a separate member made from a compressible material, an absorbent material, or a hydrophilic or hydrophobic material. In other embodiments the sealing member is a portion of the liner assembly. The sealing member includes one or more channels adapted to receive a semi-liquid such as a hydrophilic or hydrophobic paste or grout. The semi-liquid is capable of swelling in response to being exposed to another liquid, such as water, and forms a seal between the liner assembly and the host pipe/manhole.

Abstract: Apparatus and methods for lining a pipe line having a first pipe section in communication with a second pipe section where the first pipe section has an inside diameter greater than an inside diameter of the second pipe section. A transition tube having an outside diameter substantially equal to the inside diameter of the second pipe section and a length substantially equal to or greater than the length of the first pipe section is inverted into the pipe line along with a liner. A resinous material applied to the liner cures and hardens the liner after inversion. The transition tube creates a surface against which the liner can be compressed to help prevent the liner from being overstretched in the wider first pipe section.

Abstract: 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.

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.