# US 4,400,420 A · Drip shield and thermal insulation cover > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 4,400,420 A - Document ID: US4400420A - Status: Granted - Kind: A - Application number: 06/383,682 - Filed: 1982-06-01 - Granted: 1983-08-23 - Earliest claimed: 1982-06-01 - Assignees: The Boeing Company - Inventors: Wendell J. Bakken; Phillip R. Ferguson - Web page: https://patentgrep.com/patent/US4400420A ## CPC - F16L 59/026: {Mattresses, mats, blankets or the like} - F02C 7/25: Fire protection or prevention (in general A62) - Y10S 428/92: Fire or heat protection feature - Y10T 137/5762: With leakage or drip collecting - Y10T 428/24008: including fastener for attaching to external surface - Y10T 428/24017: Hook or barb - Y10T 428/24777: Edge feature - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL - 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) - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract An elongated insulating cover of high temperature resistant cloth is impregnated on one side with a fluid sealing high temperature resistant flexible coating, and is covered on the other side with a metallic coating. Fasteners are secured along both sides of the cover; which cover is then overlapped around aircraft flammable fluid lines with the fluid sealing flexible coating on the inside, and the fasteners joined together. ## Claims ### Claim 1 A flexible fluid resistant cover comprising: a fabric of high temperature resistant material of a width to overlap around aircraft flammable fluid lines to direct any leaking fluids away from potential fire areas, a temperature resistant flexible plastic impregnating the inside surface of the fabric, a metallic reflective coating on the outside surface of the fabric, and means for quickly attaching and removing the treated fabric from the flammable fluid lines. ### Claim 2 (depends on 1) A flexible fluid resistant cover as in claim 1 wherein the means for quickly attaching and removing the treated fabric comprises a pair of matching Velcro strips secured along the overlapping sides of the fabric. ### Claim 3 (depends on 1) A flexible fluid resistant cover as in claim 1 wherein the means for quickly attaching and removing the treated fabric comprises a row of fasteners extending along one of the sides of the fabric, a second set of matching fasteners extending along the second side of the fabric, and means for joining the matching fasteners together to secure the treated fabric to the flammable fluid lines. ### Claim 4 A flexible fluid resistant cover for aircraft flammable fluid lines comprising: an elongated strip of high temperature resistant cloth of a width for overlapping around aircraft flammable fluid lines, a high temperature resistant flexible material impregnating and sealing off the inside surface of the temperature resistant cloth, a metallic reflective coating on the outside surface of the cloth, and means for joining together the overlapping sides of the coated cloth to direct any leaking fluids away from hot surfaces. ### Claim 5 A flexible fluid resistant cover for aircraft flammable fluid lines comprising: two layers of high temperature resistant cloth with the two layers having a width for overlapping around aircraft flammable fluid lines, a high temperature resistant flexible material impregnating and sealing off the inside surface of the layers of cloth, a metallic reflective coating on the outside surface of the layers of cloth, and means for joining together the overlapping sides of the layers of cloth to insulate the aircraft flammable fluid lines and to direct any leaking fluids away from potential fire areas. ### Claim 6 (depends on 5) A flexible fluid resistant cover for aircraft flammable fluid lines as in claim 5 with the cover further comprising at least one layer of thermal insulation between the two layers of cloth. ### Claim 7 A flexible fluid resistant cover for aircraft flammable fluid lines comprising: at least one layer of glass cloth, a silicone rubber impregnating and sealing off one of the outer surfaces of the glass cloth, a metallic reflective coating on the other outer surface of the glass cloth to in combination create a cover that wraps around aircraft flammable fluid lines with the silicone seal on the inside to direct any leaking fluids away from potential fire areas, and means for securing the wrapped cover to the lines. ### Claim 8 (depends on 7) A flexible fluid resistant cover for aircraft flammable fluid lines as in claim 7 wherein the means for securing the wrapped cover to the lines comprises: a Velcro strip secured to the outer surface and adjacent an edge of the wrapped cover, a second Velcro strip secured to the inner surface and adjacent the opposite edge of the wrapped cover, and the strips joined together. ### Claim 9 (depends on 7) A flexible fluid resistant cover for aircraft flammable fluid lines as in claim 7 wherein the means for securing the wrapped cover to the lines comprises: a row of fasteners secured along the outer side of the cover and adjacent one edge, a row of aligned fasteners secured along the outer side of the cover and adjaent the opposite edge of the cover, and a wire secured to each fastener in one of the rows of fasteners with the wire of a length to be wrapped around the opposite row of fasteners. ### Claim 10 (depends on 7) A flexible fluid resistant cover for aircraft flammable fluid lines as in claim 7 wherein the reflective metal coating is aluminum. ### Claim 11 (depends on 10) A flexible fluid resistant cover for aircraft flammable fluid lines as in claim 10 wherein the aluminum coating is vacuum deposited. ### Claim 12 (depends on 7) A flexible fluid resistant cover for aircraft flammable fluid lines as in claim 7 with the cover further comprising: the glass cloth having two layers, and a liner between the two layers of cloth with the liner having at least one layer of glass cloth. ### Claim 13 (depends on 7) A flexible fluid resistant cover for aircraft flammable fluid lines as in claim 7 with the cover further comprising: the glass cloth having two layers, and a glass wool liner between the two layers of cloth.