Cured in place liner termination
AssigneeINA Acquisition Corp.
InventorsMark Hairston, Barry Paschall
Life of this patent
Estimating the term…
Abstract
A rehabilitated pipe system and a method for rehabilitating a pipe system. A lines a host pipe and a coupling member configured for being operatively coupled to a mechanical coupler is positioned adjacent the host pipe so that a connecting section of the liner extends into the coupling member. The connecting section of the liner is adhesively bonded to the coupling member, and the mechanical coupler is installed to fluidly couple the liner to another fluid conducting structure. The connecting section of the liner can be formed in a portion of the host pipe that is removed after lining. The coupling member can be flanged or include a lateral coupling tube. The mechanical coupler can, e.g., be a ductile iron coupler or a bolt.
Claims29
A method for rehabilitating a pipe system, the method comprising:
- lining a host pipe of the pipe system with a liner;
- positioning a coupling member in the pipe system so that a connecting section of the liner is received in the coupling member, and the coupling member is located substantially end to end with an end of the host pipe, the coupling member being configured for being operatively coupled to a mechanical coupler while the coupling member is being positioned end to end with the host pipe;
- adhesively bonding the connecting section of the liner to the coupling member;
- and
- fluidly coupling the coupling member to another fluid conducting structure using the mechanical coupler, whereby the liner, the coupling member, and the mechanical coupler form a fluid tight connection between the host pipe and the other fluid conducting structure;
- wherein the step of adhesively bonding the connecting section of the liner to the coupling member comprises curing a curable polymer impregnating at least the connecting section of the liner.
A method for rehabilitating a pipe system, the method comprising:
- positioning a liner comprising a curable polymer in a host pipe of the pipe system so that the liner lines an interior surface of the host pipe;
- curing the curable polymer;
- removing an end portion of the host pipe to expose a connecting section of the liner cured to conform to the interior surface of the end portion of the host pipe;
- positioning a coupling member configured for being operatively coupled to a mechanical coupler so that the connecting section of the cured liner is received in the coupling member;
- and
- adhesively bonding the connecting section of the liner to the coupling member whereby the connecting section of the liner sealingly bonds to the coupling member.
A method for rehabilitating a pipe system, the method comprising:
- positioning a connecting section of a liner extending through a host pipe of the pipe system within a main coupling tube positioned substantially end to end with the host pipe;
- forming a hole in the connecting section of the liner to fluidly couple a lateral coupling tube extending from the main coupling tube to an interior of the liner;
- and
- adhesively bonding the connecting section of the liner to the main coupling tube using a curable polymer, the cured curable polymer forming a seal between the connecting section of the liner and the main coupling tube operative to prevent egress of liquid into an interface between the liner and the main coupling tube at the hole after the hole is formed.
A method for rehabilitating a pipe system, the method comprising:
- lining a host pipe of the pipe system with a liner;
- positioning a coupling member in the pipe system so that a connecting section of the liner is received in the coupling member, and the coupling member is located substantially end to end with an end of the host pipe, the coupling member being configured for being operatively coupled to a mechanical coupler while the coupling member is being positioned end to end with the host pipe;
- adhesively bonding the connecting section of the liner to the coupling member;
- and
- fluidly coupling the coupling member to another fluid conducting structure using the mechanical coupler, whereby the liner, the coupling member, and the mechanical coupler form a fluid tight connection between the host pipe and the other fluid conducting structure;
- wherein the step of adhesively bonding comprises applying an adhesive to one of the connecting section of the liner and the coupling member after a curable polymer impregnating the connecting section has at least partially cured.
Dependencies are inferred from the claim text.