Abstract: An assembly for relining a junction between a branch pipeline and a main pipeline comprises a seal installation device capable of moving within the main pipeline to the junction. The seal installation device includes a curable seal for being placed and pressed onto the junction and optionally for extending into the branch pipeline. The assembly further comprises a light curing device for being introduced into the seal installation device within the main pipeline and the branch pipeline for curing the seal.

Abstract: A system for curing a pipeline liner that includes a resin curable by exposure to radiation includes first and second liner curing apparatuses, each of which includes a housing defining opposite first and second ends, and outer and inner walls defining a passage between the first and second ends; a plurality of LED's on the outer wall and operable to irradiate the radiation; and a plurality of heat dissipating elements on the inner wall. The LED's are connected in thermally-conductive relationship to the heat dissipating elements, whereby heat is dissipated from the heat dissipating elements to cool the LED's when a stream of cooling fluid passes through the passage. In use, the apparatuses, joined end-to-end, are moved within the liner while irradiating radiation from the LED's onto the liner, and the velocity of the apparatuses moving through the liner is adjusted to cause a complete curing of the resin.

Abstract: A system for curing a pipeline liner that includes a resin curable by exposure to radiation includes first and second liner curing apparatuses, each of which includes a housing defining opposite first and second ends, and outer and inner walls defining a passage between the first and second ends; a plurality of LED's on the outer wall and operable to irradiate the radiation; and a plurality of heat dissipating elements on the inner wall. The LED's are connected in thermally-conductive relationship to the heat dissipating elements, whereby heat is dissipated from the heat dissipating elements to cool the LED's when a stream of cooling fluid passes through the passage. In use, the apparatuses, joined end-to-end, are moved within the liner while irradiating radiation from the LED's onto the liner, and the velocity of the apparatuses moving through the liner is adjusted to cause a complete curing of the resin.

Abstract: The present invention relates to an apparatus for curing a liner of a pipeline where the liner includes a resin which is curable by exposure to electromagnetic radiation of a specific wavelength or a specific wavelength range. The apparatus comprises a housing defining opposite first and second ends, an outer wall of a substantially cylindrical configuration, and an inner wall defining a substantially unobstructed through-going passage extending longitudinally through the housing between the first and second ends, and further comprises a pair of power supply wires for the supply of electrical power to the apparatus and extending from the first end of the housing, and a plurality of LED's irradiating electromagnetic radiation of the specific wavelength or the specific wavelength range. The plurality of LED's is positioned and substantially evenly distributed at the outer wall of the housing, and is connected through an electronic circuit to the pair of power supply wires.