# US 2014/0196434 A1 · Shroud for Sealing Conduit Feed-Through > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0196434 A1 - Document ID: US20140196434A1 - Status: Published application - Kind: A1 - Application number: 13/706,445 - Filed: 2012-12-06 - Published: 2014-07-17 - Earliest claimed: 2012-12-06 - Assignees: United Technologies Corporation - Inventors: Pellegrino J. Pisacreta - Web page: https://patentgrep.com/patent/US20140196434A1 ## CPC - F02C 7/28: Arrangement of seals - A62C 2/06: Physical fire-barriers - A62C 3/08: in aircraft {(A62C3/0207 takes precedence)} - F01D 9/065: {Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids (see also F01D25/16, F01D25/24 and F01D25/26)} - F02C 7/25: Fire protection or prevention (in general A62) - F16L 5/04: to form a firebreak device - F16L 5/08: by means of axial screws compressing a ring or sleeve - F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00) - A62C: FIRE-FIGHTING (fire-extinguishing compositions, use of chemical substances in extinguishing fires A62D1/00; spraying, applying liquids or other fluent materials to surfaces in general B05; alarm arrangements G08B, e.g. fire alarms actuated by smoke or gases G08B17/10) - F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D) - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL ## Abstract A system has a surface intended to separate two chambers within the system. The surface has an aperture for allowing passage of at least one communication conduit. A shroud is positioned on the surface at the aperture, and has at least two portions defining a central opening to allow the communication conduit to pass through the aperture and shroud. The two portions of shroud have mating clamp ears in contact with each other. Securement members tighten the clamp ears against each other to provide a seal at an end of the shroud remote from the surface. ## Claims ### Claim 1 A system comprising: a surface intended to separate two chambers within the system, said surface having an aperture for allowing passage of at least one communication conduit; a shroud positioned on said surface at said aperture, said shroud having at least two portions defining a central opening to allow said communication conduit to pass through said aperture and said shroud, and said two portions of said shroud having mating clamp ears in contact with each other, securement members to tighten said clamp ears against each other to provide a seal at an end of said shroud remote from said surface. ### Claim 2 (depends on 1) The system as set forth in claim 1, wherein said surface is a firewall for use in a gas turbine engine. ### Claim 3 (depends on 1) The system as set forth in claim 1, wherein said communication conduit includes at least one electric wire. ### Claim 4 (depends on 3) The system as set forth in claim 3, wherein a grounding element is received within at least one of said shroud portions, and said grounding element for electrically grounding said communication conduit. ### Claim 5 (depends on 1) The system as set forth in claim 1, wherein said communication conduit includes at least a fluid tube. ### Claim 6 (depends on 1) The system as set forth in claim 1, wherein there are two mating halves of said shroud which are secured together. ### Claim 7 (depends on 1) The system as set forth in claim 1, wherein said shroud has a platform base receiving securement members to secure said shroud to said surface. ### Claim 8 (depends on 7) The system as set forth in claim 7, wherein said platform base is formed of two halves formed equally in each of said two portions of said shroud. ### Claim 9 (depends on 7) The system as set forth in claim 7, wherein said platform base includes a full cylindrical portion formed on one of said two portions of said shroud, and a smaller portion formed on another of said at least two portions of said shroud. ### Claim 10 (depends on 1) The system as set forth in claim 1, wherein a fiberglass tape is wrapped around said communication conduit at the location of said clamp ears to provide a better seal. ### Claim 11 (depends on 1) The system as set forth in claim 1, wherein said shroud includes a plurality of openings at said remote end, and there being outer ends to said at least two portions of said shroud with said clamp ears at said outer ends, and there being at least one of said plurality of opening positioned adjacent said clamp ears at said outer ends, and at least one intermediate opening intermediate said outer ones of said openings, with clamp surfaces provided between said outer ones of said opening and said at least one intermediate opening, and there being securement members tightening intermediate sealing surfaces to also provide a seal at said intermediate opening. ### Claim 12 A gas turbine engine comprising: a compressor, a combustor, a turbine, and a firewall separating a first chamber housing at least one of said compressor, combustor and said turbine from a chamber housing a controller for the gas turbine engine, said firewall having an aperture for allowing passage of at least one communication conduit; and a shroud positioned on said firewall at said aperture, said shroud having at least two portions defining a central opening to allow said communication conduit to pass through said aperture and said shroud, and said two portions of said shroud having mating clamp ears in contact with each other, securement members to tighten said clamp ears against each other to provide a seal at an end of said shroud remote from said firewall. ### Claim 13 (depends on 12) The engine as set forth in claim 12, wherein there are two mating halves of said shroud which are secured together. ### Claim 14 (depends on 12) The engine as set forth in claim 12, wherein said shroud has a platform base receiving securement tightening members to secure said shroud to said firewall. ### Claim 15 (depends on 12) The engine as set forth in claim 12, wherein said platform base is formed of two halves formed equally in each of said two portions of said shroud. ### Claim 16 (depends on 12) The engine as set forth in claim 12, wherein said platform base includes a full cylindrical portion formed on one of said two portions of said shroud, and a smaller portion formed on another of said at least two portions of said shroud. ### Claim 17 (depends on 12) The engine as set forth in claim 12, wherein a fiberglass tape is wrapped around said communication conduit at the location of said clamp ears to provide a better seal. ### Claim 18 (depends on 12) The engine as set forth in claim 12, wherein said communication conduit is an electric wire, and a grounding element is received within at least one of said shroud portions, and said grounding element for electrically grounding said electric wire. ### Claim 19 (depends on 12) The engine as set forth in claim 12, wherein said shroud includes a plurality of openings at said remote end, and there being outer ends to said at least two portions of said shroud with said clamp ears at said outer ends, and there being at least one of said plurality of opening positioned adjacent said clamp ears at said outer ends, and at least one intermediate opening intermediate said outer ones of said openings, with clamp surfaces provided between said outer ones of said opening and said at least one intermediate opening, and there being securement members tightening intermediate sealing surfaces to also provide a seal at said intermediate opening.