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US 11,566,742 B2Granted
Method, apparatus and system for lining conduits
AssigneeMoray Group, LLC
InventorKevan Taylor
Life of this patent
Estimating the term…
Abstract
Methods, apparatus or equipment and systems for lining conduits, e.g., preferably subterranean pipelines and passageways, such as sewers, with a liner impregnated with a curable resin in order to secure the conduit against ingress or egress of liquids.
Claims27
A method for repairing a hollow conduit having an inside wall surface, said method comprising:
- taking a bladder having a light activator positioned therein, wherein the light activator includes a light activator first end, a light activator second end, and multiple light source strips wrapped around a flexible tube;
- impregnating a liner with a light-activated resin;
- forming a repair assembly by positioning the liner on the outside of the bladder;
- operatively attaching the light activator to a power hose to provide power to both the light activator first end and the light activator second end from an electrical power source;
- pushing or pulling the repair assembly into the hollow conduit;
- expanding the bladder using fluid pressure to urge the liner toward the inside wall surface of the hollow conduit;
- and
- activating the light activator by providing power to the multiple light source strips to help initiate curing of the light-activated resin.
5 more elements
A method for repairing a hollow conduit having an inside wall surface;
- said method comprising:
- taking a bladder having a light activator with a light activator first end and a light activator second end positioned therein, wherein the light activator includes multiple light source strips wrapped around a flexible tube;
- impregnating a liner with a light-activated resin;
- forming a repair assembly by positioning the liner on an outside of the bladder;
- operatively attaching the light activator to a power hose to provide power to the light activator from an electrical power source;
- pushing or pulling the repair assembly into the hollow conduit by pushing or pulling the power hose;
- providing a fluid through the power hose to the bladder to expand the bladder and urge the liner toward the inside wall surface of the hollow conduit;
- providing power to the light activator first end and the light activator second end in a two-way continuous power circuit to emit light from the multiple light source strips and help initiate curing of the light-activated resin;
- allowing the light-activated resin to cure and harden;
- and
- removing the bladder and light activator from the hollow conduit.
8 more elements
A method for repairing a hollow conduit having an inside wall surface, said method comprising:
- taking a translucent bladder having a light activator positioned therein, wherein the light activator has a first portion and a second portion and includes multiple light source strips wrapped around a flexible tube;
- impregnating a liner with a light-activated resin;
- forming a repair assembly by positioning the liner around the bladder;
- attaching the light activator to a power hose to provide power to the light activator from an electrical power source;
- pushing or pulling the repair assembly into the hollow conduit;
- directing a fluid through the power hose into the bladder to expand the bladder and urge the liner toward the inside wall surface of the hollow conduit;
- providing power to the first portion and the second portion of the light activator in a two-way continuous power circuit to emit light from the multiple light source strips and help initiate curing of the light-activated resin;
- allowing the light-activated resin to cure and harden;
- and
- removing the bladder and light activator from the hollow conduit.
7 more elements
A method for repairing a hollow conduit having an inside wall surface;
- said method comprising:
- taking a translucent bladder having multiple light source strips wrapped around a flexible tube, wherein at least one of the multiple light source strips has a first end and a second end;
- impregnating a liner with a light-activated resin;
- forming a repair assembly by positioning the liner around the bladder;
- attaching the multiple light source strips to a power hose provide power to the multiple light source strips from an electrical power source;
- pushing or pulling the repair assembly into the hollow conduit;
- directing a fluid through the power hose into the bladder to expand the bladder and urge the liner toward the inside wall surface of the hollow conduit;
- providing power to the first end and the second end of the at least one of the multiple light source strips in a two-way continuous power circuit to emit light from the at least one of the multiple light source strips and help initiate curing of the light-activated resin;
- allowing the light-activated resin to cure and harden;
- and
- removing the bladder and light activator from the hollow conduit.
8 more elements
Dependencies are inferred from the claim text.