A pressure vessel includes a liner, a composite shell covering the liner, and at least one boss assembly having a metal boss. The metal boss is positioned at respective openings though the liner and the composite shell. A plastic layer is formed between the liner and the metal boss. The plastic layer adheres to both the metal boss and the liner to form a seal at the interface between the metal boss and liner. The plastic layer further increases a torque strength of the metal boss.

This invention relates to a novel method and system for dispensing CO2 vapor without over pressurization from a system having multiple containers. The system includes one or more liquid containers and one or more vapor containers. The system is designed to operate in a specific manner whereby a restricted amount of CO2 liquid is permitted into the vapor container through a restrictive pathway that is created and maintained by a shuttle valve during the filling operation so that equalization of container pressures is achieved, thereby allowing shuttle valve to reseat when filling has stopped. During use, a pressure differential device is designed to specifically isolate the vapor container from the liquid container so as to preferentially deplete liquid CO2 from the vapor container and avoid over pressurization of the system until the vapor container becomes liquid dry. The system can be operated so that at least 50% of the CO2 vapor product is dispensed from the vapor container.

A liquefied gas storage tank having insulation parts and a method for arranging the insulation parts are disclosed. Disclosed are the liquefied gas storage tank having the insulation parts and the method for arranging the insulation parts, the liquefied gas storage tank being capable of improving durability against the impact generated by liquefied gas since insulation panels, which are arranged in the insulating parts for the liquefied gas storage tank, have different densities according to: a load due to the mass of the liquefied gas stored in the liquefied gas storage tank; and the impact generated by sloshing.

Various embodiments of the present disclosure provide an electronic inflator configured to direct pressurized air into an inflatable object, to monitor the air pressure inside the inflatable object, and to automatically stop directing pressurized air into the inflatable object after determining that the air pressure inside the inflatable object has reached a preset pressure.

A thermal interface between a removable cryogenic refrigerator (4) and an article (10) to be cooled by the cryogenic refrigerator. The thermal interface consists of a recondensing chamber filled with a gas (12), the recondensing chamber being in thermal contact with a cooling surface (9) of the refrigerator and the article (10) to be cooled.

A cryogenic tank includes a heat insulating material layer which is disposed between a concrete wall and a membrane and includes a secondary barrier layer in an inner portion of the heating insulating material, and a membrane anchor mechanism which penetrates the secondary barrier layer, is fixed to the concrete wall, and presses the membrane. The membrane anchor mechanism includes a seal portion which covers a through portion penetrating the secondary barrier layer.

A hole-making system for making holes on the collar of a cylinder is provided. The hole making system includes a hand unit for making holes on the collar of the cylinder and the hand unit being configured to be used with two hands. The hole making system further includes a control unit configured to control operation of the hand unit. The hole making system further includes a pedal configured to enable a user to control the operation of the hand unit with a foot. The hand unit is held and controlled with two hands and a drilling command is provided by the pedal, allowing the user to control the hand unit in a more reliable manner.

A device for cooling a superconducting machine is disclosed, including a storage vessel which receives condensed coolant and from which the coolant can be fed via a pipe to the machine, wherein the storage vessel has a storage region and an evaporator region, which is separated from the former, with a heat source which continuously has a temperature above the boiling point of the coolant. The evaporator region is connected via a curved overflow pipe to the storage region in such a way that, when a defined coolant filling level is reached in the storage region, coolant flows via the overflow pipe automatically into the evaporator region and evaporates there.

A device for cooling a superconducting machine is disclosed, including a storage vessel which receives condensed coolant and from which the coolant can be fed via a pipe to the machine, wherein the storage vessel has a storage region and an evaporator region, which is separated from the former, with a heat source which continuously has a temperature above the boiling point of the coolant. The evaporator region is connected via a curved overflow pipe to the storage region in such a way that, when a defined coolant filling level is reached in the storage region, coolant flows via the overflow pipe automatically into the evaporator region and evaporates there.

The invention relates to a gas discharge device (1) for a vehicle powered by compressed gas, comprising: —a gas manifold (11) having a hollow body and comprising: ⋅at least one port (12) configured to be in fluid communication with a compressed gas tank; and ⋅an opening (13) for discharging gas into the atmosphere; —a pipe (14) configured to connect the port (12) to a compressed gas tank; the pipe (14) being freely translatable in the port (12) to enable a first end (141) of the pipe (14) to move translationally along an axis (A) in the port (12).