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AssigneeSekisui Norditube Technologies SE
InventorMirko Heuser
Estimating the term…
A method includes creating a junction between a main pipe having a cured rehabilitation liner and a lateral pipe. The method is used in conjunction with an installation of the liner on an inner surface of the main pipe, and includes the steps of: inserting a first sealing device into the lateral pipe opening, the first sealing device blocking the lateral pipe opening and protruding with one end into the main pipe; installing and curing the liner on the inner surface of the main pipe covering the lateral pipe opening to define a cavity between the liner and the inner surface of the main pipe; making a hole in the liner at the lateral pipe opening; injecting a substance into the cavity to substantially fill the cavity; curing the substance; and removing the sealing device from the lateral pipe opening after the substance has cured.
A method for creating a junction between a main pipe having a cured rehabilitation liner and a lateral pipe, wherein said main pipe has a lateral pipe opening in fluid communication with said lateral pipe, said method being used in conjunction with an installation of said liner on an inner surface of said main pipe, wherein the following steps are performed:
A sealing device installed in a lateral opening of a lined pipe and sealing the cavity between the liner and the pipe opening, comprising an inner fixing element connected to an outer fixing element by a central element, said central element being of reduced diameter compared to a maximum diameter of said inner fixing element and a maximum diameter of said outer fixing element, wherein said sealing device is being used in conjunction with an installation of a cured rehabilitation liner at a pipe junction between a main pipe and a lateral pipe, said main pipe having a lateral pipe opening in fluid communication with said lateral pipe, said sealing device is inserted into said lateral pipe opening to seal off said cavity between said liner and said main pipe at said lateral pipe opening, wherein said inner fixing element is mounted such that a seal between said inner fixing element and said liner is made and wherein said outer fixing element is inserted such, that a seal between said outer fixing element and said main pipe or/and a seal between said outer fixing element and said lateral pipe is made.
Dependencies are inferred from the claim text.