A pressure vessel for containing a pressurized fluid is disclosed. An outer shell may define a cavity where the fluid is stored. An inner matrix substantially fills the cavity and undertakes a majority of the forces exerted by the stored fluid. The inner matrix is a series of interconnected nodes with a series of voids located therebetween. The voids contact one another so that fluid may flow therebetween, thus filling the cavity. The interconnected nodes are filleted at the points of contact to reduce stress concentrations. An inlet/outlet device may selectively permit the introduction and removal of the fluid from the cavity.

A cylinder for liquefied gas that includes a withdrawal tube that prevents liquid product from the cylinder from being inadvertently dispensed to the tool downstream. The cylinder also includes a level measuring means used to determine the remaining liquid level in the cylinder. A low power level display to indicate low levels of liquid in the cylinder using a minimum of power consumption may also be included.

A pressurized gas vessel port assembly incorporating a wall; a port extending through the wall; a nipple extending inwardly from the wall and having a hollow bore communicating with the port; a plug received within the hollow bore for movement between first and second positions, the plug residing at an inner end of the nipple at the first position and being displaced outwardly from the first position upon movement toward the second position; a venturi port opening the first nipple's hollow bore, the venturi being positioned outwardly from the first position for inducing an outward flow of the gas within the hollow bore; and incorporating a seat which outwardly overlies the venturi port, the seat being fitted for, upon a completion of the outward movement of the plug toward the second position, annularly contacting the plug and staunching the outward gas flow.

The invention relates to a container/container support assembly, notably for a medical gas cylinder, comprising a gas container (11) comprising a protective cap (3) comprising a peripheral wall (3), and a container support (20) able and designed to accept and bear said gas container (11). The protective cap (3) of the gas container (11) comprises a fixing element (10) projecting from the surface of the peripheral wall (3), and said container support (20) comprises an attachment system (24) for fixing said container support (20) to a bearing structure (30), and a housing (22) able and designed to accept said fixing element (10) borne by the protective cap (3) of the gas container (11) so as to secure said gas container (11) to said container support (20) when said fixing element (10) is positioned in said housing (22) of the container support (20).

An assembly is for filling a gas tank for a combustion engine from a gas-filled storage bottle via a filling device arranged between the tank and the storage bottle. The tank has at least one fill valve for liquefied gas, a pressure relief valve for gas in the gaseous state, and an extraction valve for liquefied gas. The filling device has a gas connection for the storage bottle and has a fill connection for the fill valve. For filling the tank, the fill valve is connected via the filling device to the storage bottle, such that, when the fill valve is open, liquefied gas flows from the storage bottle via the fill valve into the tank. During the inflow of liquefied gas, the pressure relief valve of the tank is at least intermittently open. A filling level gauge is provided for indicating a predefined filling level in the tank.

Systems and apparatus are disclosed relating to smart regulators and smart manifolds for welding-type systems. A smart regulator may be coupled to a fluid tank and provide information regarding the current pressure(s) and/or flow rate to a remote device and/or operator. The remote device may also determine and/or output additional information, such as, for example, remaining fluid and/or remaining time before the fluid runs out or becomes dangerously low. A smart manifold may be configured to work with several different fluid supplies. In this way, an operator may easily mix fluid types, switch between different fluid types, and/or switch between different fluid tanks.

A fuel canister for use with a combustion powered tool including a refillable hydrogen storage vessel containing metal hydride, a valve assembly including at least one valve to release hydrogen fuel gas, the valve assembly being removably coupled to the refillable hydrogen storage vessel, a coupling device, the coupling device including a first coupler attached to the refillable hydrogen storage vessel and a second coupler attached to the valve assembly, and an outlet adapter attached to the valve assembly to supply hydrogen fuel gas to the power tool.

A fuel transfer station may provide for the refilling of fuel canisters providing fuel to combustion powered equipment. The fuel transfer station may include a base, a frame coupled to the base, a first connection port and a second connection port provided in the base, and fluid flow lines connecting the first connection port and the second connection port. A supply tank may be supported by the frame and detachably connected to the first connection port. A fuel canister to be refilled may be detachably connected to the second connection port. Fuel contained in the supply tank may be selectively supplied to the fuel canister through the fluid flow lines in response to a pressure gradient drawing the fuel into the fuel canister.

A method for machining workpieces, having a cryogenic fluid intake in a machining zone, including locating a valve on the line connecting a fluid source to a machining tool in the machining zone, the valve self-regulates the degree of opening according to the pressure required downstream thereof, the valve is located inside a cold box for implementing the cryogenic fluid and provides a fixed and adjustable pressure, and a fixed adjustable flow, to the machining tool, irrespective of the tool that is used, and the number of orifices and the diameter of the fluid ejection orifices in the tool.

A fuel transfer station may provide for the refilling of fuel canisters providing fuel to combustion powered equipment. The fuel transfer station may include a base, a frame coupled to the base, a first connection port and a second connection port provided in the base, and fluid flow lines connecting the first connection port and the second connection port. A supply tank may be supported by the frame and detachably connected to the first connection port. A fuel canister to be refilled may be detachably connected to the second connection port. Fuel contained in the supply tank may be selectively supplied to the fuel canister through the fluid flow lines in response to a pressure gradient drawing the fuel into the fuel canister.