Apparatus for curing a liner

An apparatus for curing a liner extending at least in part in a branch pipeline, such as a hat or T shaped liner, said liner including a substance such as a synthetic resin suitable for being curable by exposure to electromagnetic radiation, said branch pipeline being connected to a main pipeline at a junction, said apparatus comprising:

• a light head having a light source for emitting electromagnetic radiation for curing said synthetic resin,
• an inflatable housing having a connector at one end and a plug in the end opposite to the connector and a branch plug in a branch of said housing,
• a guide cable interconnected to said light head such that when pulling said guide cable, said light head being guided in a direction towards said branch plug when said apparatus is in its intended operational position in said main pipeline at said junction,
• said branch plug including an eye or loop for accommodating said guide cable, such that said guide cable moves through said eye or loop when being pulled,
• said guide cable including a stop to be stopped by said eye or loop for pulling said branch plug out of said branch pipe,
• an actuator constituting an electric, hydraulic or pneumatic actuator, said actuator including an actuator member,
• said actuator having an actuator axis substantially parallel to the axis of said main pipeline,
• when said apparatus is in its intended operational position in said main pipeline,
• said actuator and actuator member configured for applying a force to said light head in a direction substantially parallel to said actuator axis for displacement of said light head in said pipeline such that said substance is cured as said light head moving through said pipeline and exposing said substance to electromagnetic radiation.