Means and Method for Lining a Pipe

A method of repairing a junction between a main and lateral pipe, comprising:

• moving a repair assembly in the main pipe;
• aligning a guide member having a known distance from the guide member to a first edge of a lateral liner of the repair assembly with a first edge of the lateral pipe;
• moving the repair assembly the known distance to align the lateral liner of the repair assembly with the lateral pipe;
• wherein the repair assembly comprises a launcher device, a bladder assembly at least partially surrounding and frangibly connected to the launcher device and comprising a main bladder tube and a lateral bladder tube extending from or near a main bladder tube opening, and a liner assembly comprising a main liner member and a lateral liner tube extending from a main liner member opening to form a liner juncture.

A method of repairing a junction between a main and lateral pipe, comprising:

• providing a repair assembly comprising a launcher device, a bladder assembly at least partially surrounding the launcher device and comprising a main bladder tube and a lateral bladder tube extending from a main bladder tube opening, and a liner assembly comprising a main liner member and a lateral liner tube extending from a main liner member opening to form a liner juncture, the main liner member at least partially surrounding and frangibly connected to the main bladder tube;
• impregnating the liner assembly with a resinous material capable of curing and hardening;
• positioning the repair assembly in the main pipe with the lateral liner and bladder tubes adjacent the lateral pipe;
• inflating the bladder assembly to press the main liner member against the main pipe and the lateral liner tube against the lateral pipe;
• and
• breaking the frangible connection between the main liner member and the main bladder tube after the material has cured and hardened to remove the bladder assembly from the pipe.

A method of repairing a main pipe adjacent a lateral pipe to repair a junction of the main and lateral pipes, comprising:

• moving a repair assembly in the main pipe;
• aligning a guide member having a known distance from the guide member to a first edge of a lateral liner of the repair assembly with a first edge of the lateral pipe;
• moving the repair assembly the known distance to align the lateral liner of the repair assembly with the lateral pipe;
• wherein the repair assembly comprises a launcher device, a bladder assembly comprising a main bladder tube and a lateral bladder tube extending from or near a main bladder tube opening, and a liner assembly comprising a main liner member and a lateral liner tube extending from a main liner member opening to form a liner juncture, the main liner member at least partially surrounding and frangibly connected to the main bladder tube.