Abstract: An insulated bolt cap for covering a bolt on an outer plate of an aircraft nacelle is described. The bolt is used to attach an insulation blanket to the outer plate of the aircraft nacelle. The insulation blanket has one or more cavities or depressions with a bolt end exposed in the valley of the cavity. The insulated bolt cap is made of an upper plate coupled with a lower plate, and insulation material therebetween. The underside surface of the lower plate of the insulated bolt cap has an opening sized and dimensioned to mate with the bolt. The top surface of the insulated bolt cap can have a reinforced region with one or more indentations for receiving a tool.

Abstract: A flexible conduit insulated to prevent unwanted heat transfer. The conduit is insulated by a jacket-like component that creates a space between the conduit and the jacket, where the gap can be filled with air or some other insulating material. The jacket is sealed to the flexible conduit by sealing components that are configured to slide along end cap portions of the flexible conduit. Because the conduit is flexible, it can couple two other conduits that move relative to one another such that fluid can flow from one area to another via the flexible conduit.

Abstract: A flexible conduit insulated to prevent unwanted heat transfer. The conduit is insulated by a jacket-like component that creates a space between the conduit and the jacket, where the gap can be filled with air or some other insulating material. The jacket is sealed to the flexible conduit by sealing components that are configured to slide along end cap portions of the flexible conduit. Because the conduit is flexible, it can couple two other conduits that move relative to one another such that fluid can flow from one area to another via the flexible conduit.

Abstract: Devices and methods are contemplated in which a first electrode is circumferentially movable about a second electrode such that a tubular work piece can be resistance welded to a second work piece. Most preferably, the first electrode is a wheel-shaped electrode, while the second electrode is static and disk-shaped.

Abstract: A thermal bulb seal has a bulb portion and a tab portion that is configured to allow welding or other attachment of the bulb seal to the end surface of an insulating structure. Most preferably, the tab portion comprises an angled portion so allow welding of the bulb seal to another insulating structure.

Abstract: A thermal bulb seal has a bulb portion and a tab portion that is configured to allow welding or other attachment of the bulb seal to the end surface of an insulating structure. Most preferably, the tab portion comprises an angled portion so allow welding of the bulb seal to another insulating structure.

Abstract: Devices and methods are contemplated in which a first electrode is circumferentially movable about a second electrode such that a tubular work piece can be resistance welded to a second work piece. Most preferably, the first electrode is a wheel-shaped electrode, while the second electrode is static and disk-shaped.

Abstract: A thermally insulated structure comprises a conduit and an end cap that is coupled to the conduit. In especially preferred aspects, the conduit is insulated with a first and second insulation material, wherein the end cap is coupled to the conduit and the second insulation material, and wherein the first insulation material is disposed between the conduit and the second insulation material. It is further preferred that the end cap has a thermal dissipation zone that allows use of the second flexible and fluid resistant isolation material isolation without thermal degradation, even where the temperature in the conduit exceeds 500° F., or more.

Abstract: A spark plug boot assembly has a boot with one end for receiving an ignition cable and another end for receiving a spark plug. A heat barrier surrounds the boot and includes an outer wall and an inner wall defining a cavity, and a thermal insulator is disposed within the cavity. Contemplated spark plug boot assemblies may further include a silicone coating between the inner wall of the heat barrier and the outer surface of the boot to reduce potential chafing of the boot.

Abstract: A spark plug boot assembly has a boot with one end for receiving an ignition cable and another end for receiving a spark plug. A heat barrier surrounds the boot and includes an outer wall and an inner wall defining a cavity, and a thermal insulator is disposed within the cavity. Contemplated spark plug boot assemblies may further include a silicone coating between the inner wall of the heat barrier and the outer surface of the boot to reduce potential chafing of the boot.