A multi-layer pressure actuated extendable hose for use in transporting fluids between a source location and an output location includes an extendible hose comprising a biasing element, a sealing layer, and a reinforced cover layer. The sealing layer forms a sealed conduit for transporting the fluids, and the reinforced cover layer on the outside provides radial and longitudinal strength for the sealing layer. The hose can be operated by increasing internal pressure within the hose relative to ambient pressure. When the hose is pressurized by a fluid source, the internal pressure of the hose overcomes the retracting force of the biasing element and the hose extends. When the fluid source is turned off or disconnected from the hose, internal pressure is reduced and the biasing element exerts a tension force on the hose causing the hose to retract.

A tubing apparatus includes corrugated tubing including convolutions of peaks and valleys; an electrically conductive or semi-conductive, polymer jacket disposed along an exterior length of the corrugated tubing; wherein the jacket includes a conductive material in an amount sufficient to protect the corrugated tubing from damage resulting from electrical arcing at levels of at least 9 coulombs at a waveform of 10 microseconds?1000 microseconds.

The invention provides a laminate having high elastic modulus retention even at high temperature and having moderate hardness. The laminate includes a layer (A) formed from a fluororesin and a layer (B) formed from a polyamide resin. The fluororesin is a copolymer containing a copolymerized unit of tetrafluoroethylene and a copolymerized unit of vinylidene fluoride, and has a storage elastic modulus (E) of 60 to 400 MPa measured by dynamic mechanical analysis at 170 C.

A draining device, which can discharge permeated water and/or rainwater quickly, and adapt to different construction requirements is provided. The draining device may have a permeable wall body. The permeable wall body may have a plurality of ribs, where a cross section of the ribs in a first direction is wavy, and a wave amplitude of the cross section gradually changes, from a first side to a second side, in a second direction. Therefore, the ribs have alternating wave crest parts and wave trough parts at either side of the first direction. The wave crest part of one rib, among two adjacent ribs is opposite to the wave trough part of the other. The first direction intersects the second direction. The second direction is a thickness direction of the permeable wall body.

A protective textile sleeve having a flexible, tubular wall of braided yarns and method of construction thereof is provided. At least some of the yarns include plastically deformable and/or heat-settable monofilaments and/or multifilaments that are plastically deformed and/or heat-set to provide the wall with a convolute shape. The convolute shape is formed by a plurality of alternating crests and valleys, wherein the crests are formed in tight, axially compressed relation with one another, with the valleys intervening between the crests being relatively narrow or short in axially extending length relative to the crests, providing the wall with an increased density, an increased abrasion resistance, enhanced thermal protection, enhanced impact resistance, enhanced noise attenuation. Further, with the wall having an accordion-like shape, greatly enhanced flexibility is attained without concern of kinking when routing the sleeve about meandering paths and about sharp bends, corners and the like.

This invention provides for a component forming a part of a breathing tube, or forming the breathing tube, for example as a part of a breathing circuit for respiratory therapy. The component comprising a tubular body having a foamed wall. The foamed wall can be formed from extrusion of a single extrudate. The foamed wall is of a sufficient minimum optical transparency such that, in use, there is enabled the visual detection of a liquid (or condensate that may have formed) within the tubular body.

This invention provides for a component forming a part of a breathing tube, or forming the breathing tube, for example as a part of a breathing circuit for respiratory therapy. The component comprising a tubular body having a foamed wall. The foamed wall can be formed from extrusion of a single extrudate. The foamed wall is of a sufficient minimum optical transparency such that, in use, there is enabled the visual detection of a liquid (or condensate that may have formed) within the tubular body.

A tubing apparatus includes corrugated tubing including convolutions of peaks and valleys; an electrically conductive or semi-conductive, polymer jacket disposed along an exterior length of the corrugated tubing; wherein the jacket includes a conductive material in an amount sufficient to protect the corrugated tubing from damage resulting from electrical arcing at levels of at least 9 coulombs at a waveform of 10 microseconds1000 microseconds.

A kink-free tube is provided. The tube comprises a first part and a second part, both formed by a film material which is a multilayer film material, with an outer layer on opposite sides of at least one inner layer thereby providing enhanced characteristics with respect to burst pressure, anti-kink effect, and opening pressure.

A method of molding a polymeric device having an elongated tube and a spiral fin. The method including: injecting a liquid resin into a mold space defining the polymeric device, the mold space having an elongated hollow tube molding space and a spiral fin molding space wound around the elongated hollow tube molding space; and providing a longitudinal flow path in at least a portion of a longitudinal length of the elongated tube molding space, the longitudinal flow path defining a concavity greater in depth than other portions of the elongated hollow tube molding space such that the liquid resin injected into the mold space flows in the longitudinal flow path to fill one or more ends of the hollow tube molding space.