In a method for manufacturing a spoke unit, the continuous fiber reinforced plastic is led from a middle supporting portion to a first supporting portion along the front surface of the mandrel. Subsequently, the continuous fiber reinforced plastic is led from the first supporting portion to the middle supporting portion along the back surface of the mandrel. Subsequently, the continuous fiber reinforced plastic is led from the middle supporting portion to a second supporting portion along the front surface of the mandrel. Subsequently, the continuous fiber reinforced plastic is led from the second supporting portion to the middle supporting portion along the back surface of the mandrel.

An expiratory limb for a breathing circuit includes an enclosing wall defining a flexible singular expiratory flow passage between an inlet and an outlet and bounding the flexible singular expiratory flow passage and ambient air. The expiratory limb includes one or more regions of the enclosing wall that made from a material that allows passage of water vapor without allowing passage of liquid water, thereby forming a water vapor flow path from the flexible singular expiratory flow passage to the ambient air through the material. The expiratory limb is configured to allow diffusion of water vapor along the flexible singular expiratory flow passage and dry the flow of expiratory gases between the inlet and the outlet.

A filament winding apparatus includes a controller that controls the action of the filament winding apparatus. The controller includes a tension controller that controls a tension adjuster in such a way that an adjusted tension waveform that relates the rotation phase of a liner to the tension of a fiber adjusted by the tension adjuster has a phase opposite to the phase of a temporary tension waveform.

A transportable system and method for the in situ eccentric manufacturing of reinforced thermoplastic pipelines in continuous lengths up to 10 miles and from 8 to 60 inches in diameter having a rotating frame assembly with a eccentric spools for application of reinforcing tapes and other components to a polyolefin core pipe, and further having a forming machine for cross sectional shape reduction of the reinforced thermoplastic pipelines to facilitate pulling the reinforced thermoplastic pipelines inside a host pipeline. Also provided are continuous monitoring and marking with application of tape in the hoop stress direction and the axial stress direction as well as saturated tape feeding stations for impregnation of the reinforcing tape for in situ curing.

A filament winding apparatus includes a controller that controls the action of the filament winding apparatus. The controller includes a tension controller that controls a tension adjuster in such a way that an adjusted tension waveform that relates the rotation phase of a liner to the tension of a fiber adjusted by the tension adjuster has a phase opposite to the phase of a temporary tension waveform.

A pipe forming assembly and method of use is provided for forming a continuous length of pipe. In particular, the present invention concerns a pipe forming assembly including: a former; at least one applicator for applying material about the former, the at least one applicator being movable relative to the former while applying material to form the pipe; and a carriage for conveying the former and the at least one applicator along a surface for forming a continuous length of pipe.

A breathing circuit component includes an inlet, an outlet and an enclosing wall. The enclosing wall defines a gases passageway between the inlet and the outlet. At least a region of the enclosing wall is formed from a breathable material that allows the passage of water vapor without allowing the passage of liquid water or respiratory gases. The breathing circuit component may be the expiratory limb of a breathing circuit.

A method of manufacturing a composite profile having a non-circular cross section, comprising the steps ofactuating a string of mandrel sections (1) having a non-circular cross section to move axially in a one way motion through one or more orbital winding stations (3) that are rotationally disposed about to the longitudinal axis of the mandrel in one or more passes, continuously helically winding in one or more winding stations tape comprising a bundle of parallel longitudinally extending fibers in a thermoplastic matrix material onto the mandrel sections or a previously wound layer to form layers (4) of a wall of a thin walled profile having a closed cross section including at least one planar surface, andcutting the thin walled profile into profile sections that are carried on one or more mandrel section sections, wherein the layer is consolidated with the previous layer prior to cutting. FIG.1

A method of manufacturing a composite profile having a non-circular cross section, comprising the steps ofactuating a string of mandrel sections (1) having a non-circular cross section to move axially in a one way motion through one or more orbital winding stations (3) that are rotationally disposed about to the longitudinal axis of the mandrel in one or more passes, continuously helically winding in one or more winding stations tape comprising a bundle of parallel longitudinally extending fibers in a thermoplastic matrix material onto the mandrel sections or a previously wound layer to form layers (4) of a wall of a thin walled profile having a closed cross section including at least one planar surface, andcutting the thin walled profile into profile sections that are carried on one or more mandrel section sections, wherein the layer is consolidated with the previous layer prior to cutting. FIG.1

According to the present invention, there is provided a pipe forming apparatus for forming a pipe at an installation site. The apparatus includes a former upon which material is wound, and a mold for receiving the former bearing the wound material. An applicator is provided for applying curable liquid within the mold. Advantageously, the pipe is formed at site to provide for efficient formation of a pipeline. A transported ISO container providing the material and curable liquid to the site can produce 800 metres of pipeline section, compared with 60 metres in the prior art, representing a significant increase in efficiency.