In a vacuum insulating container (1), an outer cylinder (2) has a first annular wall (2e) that extends radially inward so as to be inclined with respect to an aperture plane (2d) of the outer cylinder (2) at an open end of the outer cylinder (2) and has a tip end part (2c) spaced apart from an outer peripheral surface of the inner cylinder (3); an inner cylinder (3) has a second annular wall (3e) that extends radially outward so as to be inclined with respect to the aperture plane (3d) of the inner cylinder 3 at an open end of the inner cylinder (3) and faces the first annular wall (2e); and an annular sealing member (5) formed of an elastic body having a low thermal conductivity is compressed between the first annular wall (2e) and the second annular wall (3e).

A vacuum double structure includes: a tubular and metal inner wall member; a tubular and metal outer wall member in which the inner wall member is accommodated; and a sealing member provided between a facing surface of the inner wall member and a facing surface of the outer wall member. The sealing member includes an annular spacer, a first annular packing material, and a second annular packing material. The annular spacer is provided between the facing surface of the inner wall member and the facing surface of the outer wall member.

A vacuum double structure includes: a tubular and metal inner wall member; a tubular and metal outer wall member in which the inner wall member is accommodated; and a sealing member provided between a facing surface of the inner wall member and a facing surface of the outer wall member. The sealing member includes an annular spacer, a first annular packing material, and a second annular packing material. The annular spacer is provided between the facing surface of the inner wall member and the facing surface of the outer wall member.

A vehicular exhaust pipe structure includes an outer pipe extending along a front-rear direction of a vehicle and an inner pipe disposed inside the outer pipe along an axial direction of the outer pipe. The inner pipe is joined to the outer pipe such that a vacuum layer is formed between the inner pipe and the outer pipe. The inner pipe includes a pseudo-cylindrical concave polyhedral shell-shaped part.

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 configuration including a process chamber for processing a substrate, a gas supply system including supply pipe for supplying a source gas into the process chamber, and an exhaust system including exhaust pipe for discharging an exhaust gas containing the source gas from the process chamber, in which at least one of the supply pipe and the exhaust pipe includes an inner pipe constituting a first flow path of the source gas or the exhaust gas, a member provided outside the inner pipe and constituting a second flow path between the member and an outer wall of the inner pipe, and an outer pipe provided surrounding the inner pipe in order to provide a space between the outer pipe and an outside of the member.

A configuration including a process chamber for processing a substrate, a gas supply system including supply pipe for supplying a source gas into the process chamber, and an exhaust system including exhaust pipe for discharging an exhaust gas containing the source gas from the process chamber, in which at least one of the supply pipe and the exhaust pipe includes an inner pipe constituting a first flow path of the source gas or the exhaust gas, a member provided outside the inner pipe and constituting a second flow path between the member and an outer wall of the inner pipe, and an outer pipe provided surrounding the inner pipe in order to provide a space between the outer pipe and an outside of the member.

A piping system includes a first and a second inner tube assembled end to end and a hot fluid detector. For each inner tube, a first peripheral tube into which the inner tube is introduced and fixed. For each first peripheral tube, a second peripheral tube into which the first peripheral tube is introduced and fixed. A sleeve has a first section which surrounds the ends of the second two peripheral tubes facing one another and a second section which extends between the two ends up to the walls of the first two peripheral tubes. A pipe crosses the sleeve and opening out, on the one hand, into the space between the inner tubes and the first peripheral tubes and, on the other hand, in the vicinity of the hot fluid detector. A piping system of this kind is therefore thermally insulated and allows detection in the event of a leak.

The present invention relates to stanchion padding and more specifically to stanchion padding for use in transit vehicles. The stanchion padding of the present invention comprises a tube having a hollow centre running through it from a first end to a second end and the tube also comprising an exterior wall and an interior wall joined by at least two channel walls forming at least two hollow channels. These hollow channels may be adapted to receive end caps and at least one end cap may be installed onto either the first end or the second end of the tube. The interior wall may additionally have small inner channels running the length of the tube. The tube may be made by thermoplastic extrusion and at least one end cap may be made by thermoplastic injection molding.

A double tube is provided, which can reliably prevent buckling and flattening of an inner tube even when bending is performed.