A piping comprising a pressure vault formed of at least one interlocked shaped wire, each turn of the wire having at least one stud and a groove adjacent the stud, the stud interlocking into a groove of an adjacent turn of a shaped wire. At least one additional gas circulation passage through the stud and/or in the bottom of the groove is defined, the passage allowing gas circulation between the inside and the outside of the vault in addition to clearance between the stud of one turn and the bottom of the groove of the adjacent turn, or in the absence of clearance between the stud of one turn and the bottom of the groove of the adjacent turn.

A piping comprising a pressure vault formed of at least one interlocked shaped wire, each turn of the wire having at least one stud and a groove adjacent the stud, the stud interlocking into a groove of an adjacent turn of a shaped wire. At least one additional gas circulation passage through the stud and/or in the bottom of the groove is defined, the passage allowing gas circulation between the inside and the outside of the vault in addition to clearance between the stud of one turn and the bottom of the groove of the adjacent turn, or in the absence of clearance between the stud of one turn and the bottom of the groove of the adjacent turn.

Helically reinforced, flexible tubing or hose is formed from continuously extruded thermoplastic material helically circumferentially wound at a wrapping station around an array of bearing-supported rods that are concurrently but individually turned and are adjustably canted relative to an imaginary center axis. The tubing or hose being formed has a continuous reinforcing rib helically wound therearound and continuously integrally connected thereto. The resulting tubing or hose may be transversely severed at intervals along its length to provide discrete lengths of hose that are annealed while axially compressed to relieve stress.

Helically reinforced, flexible tubing or hose is formed from continuously extruded thermoplastic material helically circumferentially wound at a wrapping station around an array of bearing-supported rods that are concurrently but individually turned and are adjustably canted relative to an imaginary center axis. The tubing or hose being formed has a continuous reinforcing rib helically wound therearound and continuously integrally connected thereto. The resulting tubing or hose may be transversely severed at intervals along its length to provide discrete lengths of hose that are annealed while axially compressed to relieve stress.

Embodiments of the present invention relate to elongated tubular members that include at least one layer comprising a cellulose ester. In some cases, the cellulose ester may be in the form of staple fibers. The layer may be formed via a wet-laid fiber web that may also include cellulose fibers. The elongated tubular members may be suitable for use with food and/or beverage items as, for example, drinking straws or other similar items.

A pipe includes an elongate strip wound into a tubular pipe form with the upper surface and the ribs at an exterior of the tubular pipe form, and with a first portion of a first side overlapping a first portion of a second side along a helical joint. A plastic seam weld is applied between the overlapping first portions for bonding the overlapping first portions together. A plastic overweld extends over the overlapping first portions and over both a second portion of the first side and a second portion of the second side. The second portion of the first side is adjacent to the first portion of the first side and does not overlap with any part of the second side, and the second portion of the second side is adjacent to the first portion of the second side and does not overlap any part of the first side.

A vacuum insulated structure including a tube having an outer wall, a jacket surrounding the tube to enclose an annular insulating space, the jacket having an end that terminates at the outer wall of the tube, a seal formed between the end of the jacket and the tube to preserve a vacuum within the insulating space, and a fitting affixed to one of the tube and the jacket for coupling the vacuum insulated structure to an external device. A method of making a vacuum insulated structure including forming a tube and a jacket, positioning the jacket over the tube to form an annular insulating space, with an end of the jacket being positioned adjacent to an outer wall of the tube to form a vent, causing air to escape through the vent, sealing the vent, and affixing a fitting to one of the tube and the jacket.

A hose assembly includes a flexible hose, an end connection attached to a first end of the hose, an insulation material wrapped onto the exterior surface of the hose, a cover surrounding the insulation material, and a cuff extending over and in engagement with at least a portion of the end connection and the cover. The insulation material, the cover, and the cuff each include fire resistant materials rated for continuous use at a temperature of at least about 90° C.

A line element for an exhaust pipe includes an inner hose, and an outer hose which is disposed in surrounding relation to the inner hose such as to form an intermediate space. At least one of the inner and outer hoses is formed from a wound profiled band. The band includes a radial projection which projects into the intermediate space and forms a spacer between the inner hose and the outer hose.

A line element for an exhaust pipe includes an inner hose, and an outer hose which is disposed in surrounding relation to the inner hose such as to form an intermediate space. At least one of the inner and outer hoses is formed from a wound profiled band. The band includes a radial projection which projects into the intermediate space and forms a spacer between the inner hose and the outer hose.