# US 11,566,742 B2 · Method, apparatus and system for lining conduits > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,566,742 B2 - Document ID: US11566742B2 - Status: Granted - Kind: B2 - Application number: 17/848,049 - Filed: 2022-06-23 - Published: 2022-10-13 - Granted: 2023-01-31 - Earliest claimed: 2017-08-18 - Assignees: Moray Group, LLC - Applicants: Moray Group, LLC - Inventors: Kevan Taylor - Web page: https://patentgrep.com/patent/US11566742B2 ## CPC - F16L 55/1651: {the flexible liner being everted} - B29C 63/36: being turned inside out {(for platic tubes in general B29C67/0018)} - G06T 1/20: Processor architectures; Processor configuration, e.g. pipelining - G06T 15/06: Ray-tracing - G06T 17/005: {Tree description, e.g. octree, quadtree} - B29C 65/1406: {Ultraviolet [UV] radiation} - B29C 65/4845: {Radiation curing adhesives, e.g. UV light curing adhesives} - B29C 66/301: {Three-dimensional joints, i.e. the joined area being substantially non-flat (B29C66/5223, B29C66/5224, B29C66/5225 take precedence)} - B29C 66/5221: {for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other} - B29C 66/612: {Making circumferential joints} - B29C 2035/0827: {using UV radiation} - G06T 2210/12: Bounding box - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL ## 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. ## Claims ### Claim 1 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. ### Claim 2 (depends on 1) The method of claim 1 wherein the expandable bladder forms part of a packer. ### Claim 3 (depends on 1) The method of claim 1 further comprising allowing the light-activated resin to cure and harden. ### Claim 4 (depends on 3) The method of claim 3 further comprising removing the bladder and light activator from the hollow conduit. ### Claim 5 (depends on 1) The method of claim 1 wherein the step of operatively attaching the light activator to the power hose is performed before the step of forming the repair assembly. ### Claim 6 (depends on 1) The method of claim 1 wherein a fluid is applied through the power hose to expand the bladder. ### Claim 7 (depends on 1) The method of claim 1 wherein the repair assembly is pushed or pulled into the conduit by pushing or pulling the power hose. ### Claim 8 (depends on 1) The method of claim 1 further comprising providing power to the light activator at an intermediate portion between the light activator first end and the light activator second end. ### Claim 9 (depends on 1) The method of claim 1 wherein at least one of the multiple light source strips has a light source strip first end and a light source strip second end, and the method further comprises providing power to both the light source strip first end and the light source strip second end. ### Claim 10 (depends on 1) The method of claim 1 wherein each of the multiple light source strips has a light source strip first end and a light source strip second end, and the method further comprises providing power to both the light source strip first ends and the light source strip second end. ### Claim 11 (depends on 1) The method of claim 1 further comprising positioning a flexible UV resistant tube over the liner before the repair assembly is pushed or pulled into the hollow conduit to help prevent premature curing of the light-activated resin. ### Claim 12 (depends on 11) The method of claim 11 wherein each of the multiple light source strips is powered by the electrical power source. ### Claim 13 (depends on 1) The method of claim 1 wherein the fluid pressure is air pressure. ### Claim 14 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. ### Claim 15 (depends on 14) The method of claim 14 further comprising positioning a flexible UV resistant tube over the liner before the repair assembly is pushed or pulled into the hollow conduit to help prevent premature curing of the light-activated resin. ### Claim 16 (depends on 14) The method of claim 14 wherein each of the multiple light source strips has a light source strip first end and a light source strip second end, and the method further comprises providing power to both the light source strip first ends and the light source strip second ends. ### Claim 17 (depends on 16) The method of claim 16 wherein each of the multiple light source strips is powered by the electrical power source. ### Claim 18 (depends on 14) The method of claim 14 further comprising providing power to the light activator at an intermediate portion between the light activator first end and the light activator second end. ### Claim 19 (depends on 14) The method of claim 14 wherein at least one of the multiple light source strips has a light source strip first end and a light source strip second end, and the method further comprises providing power to both the light source strip first end and the light source strip second end. ### Claim 20 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. ### Claim 21 (depends on 20) The method of claim 20 wherein the first portion is a light activator first end and the second portion is a light activator second end. ### Claim 22 (depends on 20) The method of claim 20 wherein the step of attaching the light activator to the power hose is performed before the step of forming the repair assembly. ### Claim 23 (depends on 20) The method of claim 20 further comprising providing power to the light activator at an intermediate portion between the first portion and the second portion. ### Claim 24 (depends on 20) The method of claim 20 wherein at least one of the multiple light source strips has a light source strip first end and a light source strip second end, and the method further comprises providing power to both the light source strip first end and the light source strip second end. ### Claim 25 (depends on 20) The method of claim 20 wherein each of the multiple light source strips has a light source strip first end and a light source strip second end, and the method further comprises providing power to both the light source strip first ends and the light source strip second ends. ### Claim 26 (depends on 20) The method of claim 20 wherein each of the multiple light source strips is powered by the electrical power source. ### Claim 27 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.