Abstract: A mask system and an air delivery conduit for use in the treatment of respiratory disorders. The air delivery conduit may comprise a textile having an airtight arrangement. A support structure may be provided to the conduit to provide form.

Abstract: The present heating, ventilation and air conditioning (HVAC) air conveyance apparatus is plurality of panels adapted to be field-assembled to form the conveyance apparatus. These panels include a pair of first quadrilateral panels, each defining a right-angle flange extending from each of a pair of opposite edges and a pair of second quadrilateral panels, each defining a hemmed cleat along each of a pair of opposite edges. Each hemmed cleat is shaped and dimensioned to receive one of the first quadrilateral panel right-angle flanges to form the HVAC air conveyance apparatus. Also, HVAC unit mating flanges extending from each other edge of each of the first quadrilateral panels and/or from each other edge of each of the second quadrilateral panels, such that at least a pair of opposed peripheral HVAC unit mating flanges extend from each end of the HVAC air conveyance apparatus.

Abstract: A modular fabrication tool for prefabricating insulation for a duct segment includes at least three interchangeable and detachably connected panels, each panel of the at least three panels corresponding to a respective side of the duct segment. Each panel includes at least one of a connecting bar extending beyond a periphery of the respective panel or a connecting track. A connecting bar of one panel is received by a connecting track of a neighboring panel when two neighboring panels are properly positioned, adjoined together, whereby a retaining pin of the tool is advanceable through aligned, respective apertures of the connecting track and the connecting bar received therein.

Abstract: An improved oral pharyngeal airway for suction and delivery of oxygen to a patient during medical procedures.

Abstract: A foreign material exclusion device that is adapted to seal an area of a construction, such as a tube or pipe or other cavity, from foreign material or debris temporarily, wherein the device includes a cylindrical plug that has a plurality of resilient bodies for holding the device within a particular construction. The bodies are substantially planar, and semicylindrical in shape wherein two bodies are utilized. A flexible cover includes a first pouch which contains a first body therein and desirably a second pouch of the cover contains a second body therein, with the cover having a hinge between said first and second pouches. When the device is not in use, the bodies can be folded against one another in a closed position until they are inserted into a tube or pipe whereupon they can be opened to an open position and generally form a disk having a snug, fitted connection with a wall of the tube or pipe.

Abstract: The present invention provides systems and methods for curing at least one leakage in a pipeline, the system including at least one fiber-in-sealant-in carrier fluid (FISIC) composition and at least one gel pig composition; wherein the at least one FISIC composition and the at least one gel pig form a pig train, are adapted to move along the pipeline to a region of the leakage and to seal and cure the at least one leakage.

Abstract: An explosion-proof conduit fitting configured to be placed between two pieces of electrical conduit, thereby connecting the two conduit pieces together such that electrical lines running through the two conduits also pass through the fitting. An embodiment utilizes two primary components to prevent migrations of gases and to provide the structural requirement of withstanding the extreme pressures of explosions from allowing flames and temperatures above the ignition temperature of flammable gases to pass through the hazardous area boundary: a granular fill, such as sand; and a removable gas-tight fire-stopping compound, such as an expanding closed cell foam.

Abstract: The present invention concerns a high-pressure hose comprising a liquid and gas tight inner liner made from rubber, plastic or thermoplastic elastomer, at least four helically laid reinforcing plies embedded in polymer material, and an outer cover layer made from rubber, plastic or thermoplastic elastomer, wherein adjacent reinforcing cable plies are directed in the same direction and the follow-up ply pair is laid in opposite sense. Additionally, the pitch of filaments of adjacent unidirectional reinforcement plies is the same and the number of filaments is equal or different. The present invention further concerns methods for the production of such hoses and the use of such hoses.

Abstract: The heated pipeline comprises an inner pipe intended to convey a fluid, and an outer coating made of a thermal insulating material and covering the inner pipe. The outer coating comprises at least one duct delimited, in a transverse plane, by a closed outline entirely defined in the thermal insulating material, each duct housing a respective heating element.

Abstract: A flexible conduit used for transportation of hydrocarbon fluids for off-shore and on-shore oil and gas applications includes an inner pressure sheath, at least one reinforcing layer at least partially disposed around the pressure sheath, an outer protective sheath at least partially disposed around the at least one reinforcing layer, and optionally a thermally insulating layer disposed between the at least one reinforcing layer and the outer protective sheath. At least one of the inner pressure sheath, outer protective sheath, and the thermally insulating layer is manufactured using a thermoplastic blend (TPB) composition. The TPB compositions disclosed herein are useful for the formation of at least one polymer layer of the thermoplastic umbilical hoses used for transportation of hydrocarbon fluids.

Abstract: A pipe bend, in particular for an exhaust air duct of a fume extraction hood, which has a deflection of 60° to 120°, preferably 90°, with an inflow side and an outflow side, wherein the pipe bend has at least one air guide element which is curved in deflection direction and which extends in the interior of the pipe bend, characterized in that the pipe bend has a cross-sectional widening in flow direction behind the inflow side, in particular adjacent thereto, and a cross-sectional tapering in front of the outflow side, in particular adjacent thereto, the course of the bend of the outer wall of the bend deviating from the course of a quarter circle and having a bulge lying outside the vertex of the bend, in particular downstream of the vertex in the direction of flow.

Abstract: An access device configured to be installed in an air conditioning (AC) system or network. The access device includes a main body and a lid configured to threadedly engage the main body. A hollow cylindrical extension extends between a proximal end and a distal end, thereby establishing a passage through the main body. The access device can be secured to a wall in an AC system with the cylindrical extension passing through a hole in the wall. The access device further includes a flange extending outwardly in a lateral direction relative to the central longitudinal axis. Some embodiments include a plurality of anti-rotation teeth attached to the flange. Some embodiments include an insulation support extending inwardly from the cylindrical extension to temporarily support insulation within the cylindrical extension between the lid and the insulation support.

Abstract: This application relates to a duct system, including a duct section that includes a foam body having a first end face and a second end face, where the foam body defines a duct passage extending from the first end face to the second end face, and a sleeve that directly or indirectly covers the foam body, the first sleeve including a plurality of side walls, where at least one side wall has an integral end portion that is folded back to define at least a portion of an integral, peripheral coupling flange around an end face of the foam body.

Abstract: The present invention relates to a composite coating for an inner tube delimiting a passageway for a fluid for obtaining a pipe for conveying fluids in HVACR systems.

Abstract: A method and apparatus for moving pipe rehabilitation objects, such as a pipe liner through a host pipeline. Flexible tubing is used to connect to the pipe rehabilitation object and to apply a force to cause the pipe rehabilitation objection to move through host pipeline. The flexible tubing is also capable of conveying a fluid, such as a lubricant through the tubing.

Abstract: Provided is a piping system for an air conditioner installed in a vehicle that can achieve appropriate weight reduction while ensuring appropriate pressure resistance as the piping system as a whole. A circulation path that connects component devices of an air conditioner (8) in an annular shape to circulate a refrigerant (C) is formed by each pipe body extending between the component devices. At least one of the pipe bodies includes: a resin hose (2) embedded with a non-metal reinforcing material (3f) or a resin pipe (5) embedded with a non-metal reinforcing material (6f), and the resin pipe bodies (2), (5) are employed in 50% or more of a total length of each of the pipe bodies constituting the circulation path.

Abstract: A fluid flow conditioning apparatus having self-adjusting tab members that reduce flow losses within a conduit. A plurality of tabular members is affixed to an insertion plate-type flow conditioner. Tabular members are cojoined in pairs at their leading edges. When the cojoined pair of the first tabular member and the second tabular member are placed into a fluid flow, an angle between the first tabular member and the second tabular member is configured to decrease in response to static and dynamic pressure exerted onto the outer surfaces of the tabular members by the fluid flow. The tabular members may be made of a hyperplastic material configured to undergo an elastic deformation and exhibit flapping due to the dynamic pressure of the fluid flow. Tabular members maybe cojoined by a hinge configured to partially close in response to pressure exerted by the fluid flow, decreasing the angle between the tabular members.

Abstract: An attack fire hose capable of withstanding radiant and convective heating without leakage or degradation of performance for significant periods of time is disclosed. The hose includes a woven aramid blend of fibers in the outer jacket, and a rubber-like material layer is extruded through the weave of an inner nylon/polyester jacket that is fitted within the woven outer jacket. The resultant hose retains a double jacketed construction with exceptional thermal performance.

Abstract: An article and method for forming a coated metal pipe for use as an automotive fluid transport tube including a copper plated carbon steel tubing formed into a circular cross sectional profile. At least one intermediate layer including any of a corrosion inhibiting zinc/aluminum alloy, electroplated zinc or hot dip aluminum is applied over said tubing. One or more outer polymer or copolymer layers are applied over the intermediate layer, with the outer layer or multi-layers compounded with a graphene or graphene oxide powder.

Abstract: Apparatus for tensioning pliable airducts while supporting internal HVAC components are disclosed. An airduct system includes an airduct having an elongate tubular wall of a pliable material. The airduct system further includes a frame disposable inside the tubular wall of the airduct, the frame including a hoop to support the tubular wall in a radial direction, the hoop to define an opening to provide passage of a flow of air along a length of the airduct. The airduct system also includes an HVAC component disposable within the tubular wall of the airduct, the HVAC component to be attached to and supported by the frame inside the airduct, the HVAC component to adjust a characteristic of the air.