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 pressure vessel is disclosed. The pressure vessel may include a boss, a liner, an O-ring, and a composite overwrap of shell. A boss may comprise a through aperture, a first groove encircling the through aperture, and a first engagement mechanism. A liner may comprise an interior surface, exterior surface, and a second engagement mechanism. The interior surface may define an interior cavity of the pressure vessel. The second engagement mechanism may mechanically engage the first engagement mechanism to secure the liner to the boss. An O-ring may be positioned within the first groove of the boss and abut the exterior surface of the liner. A composite overwrap may surround the liner and at least a portion of the boss.

The present disclosure provides systems and methods for refilling fluid containers. A fluid container may include a bottle and a valve assembly. The valve assembly may include two valves and be configured to engage with the bottle and a filling head or dispensing head. A system is configured to provide pressurized fluid to the refillable container, monitor filling, determine when to stop filling, and determine how much fluid was provided. The valve assembly may include a float mechanism coupled to one of the valves of the valve assembly to ensure fluid flow is stopped when the fluid container is full. The fluid, which can include carbon dioxide, is stored in a storage tank. A flow system provides the fluid to a filling head, which engages with the fluid container. The flow system includes a transfer pump, valves, and sensors configured to provide the fluid to the filling head.

Filling piece coupling assembly, e.g. for filling a balloon, configured to be connected to a gas tank including a coupling piece, configured to be fixed to the gas tank and including a circumferential wall, which defines an interior of the coupling piece, wherein the circumferential wall includes a first internal thread and a distinct second internal thread, which are aligned parallel to each other and spaced from each other in an axial direction, a valve, including a hollow cylindrical housing provided with a first outer thread, corresponding to the first internal thread of the coupling piece and a filling piece, separate from the valve, including a second outer thread, which substantially corresponds to the second internal thread of the coupling piece, wherein the second outer thread is configured to cooperate with the second internal thread to releasably connect the filling piece to the coupling piece to form a gas-tight connection.

A method for fixing an assembly onto a gas vessel configured to contain a pressurized fluid. The assembly including a housing, an electronic acquisition board secured to the housing, and a strain gauge. The method including fixing the strain gauge to the vessel using a second adhesive means, the strain gauge being fixed to the vessel in such a way to allow deformation along with the vessel under the effect of the pressurized gas contained in the vessel. Electrically connecting the strain gauge and the electronic acquisition board using at least one electric cable thereby allowing the housing to be free to move relative to the strain gauge. Fixing the housing to the vessel using a first adhesive means so as to cover the strain gauge and thereby leaving a volume of air between the housing and the strain gauge and/or between the strain gauge and the electronic acquisition board.

Tap for pressurised fluid, with or without integrated pressure regulator, including a body housing a fluid circuit having an upstream end to be connected to a pressurised fluid reservoir and a downstream end to be connected to a user device, the circuit including a valve for controlling the flow rate in the circuit, the valve being controlled by a lever pivotally mounted on the body of the tap between a first state rest position and a second state active position wherein, the outer surface of the tap comprises a groove and in that, in its first position, a first portion of the lever is housed in the groove and does not protrude or protrudes slightly with respect to the outer surface of the tap, while a second portion or the lever protrudes outside the groove.

The invention relates to a protective cap for a pressurized fluid cylinder valve, comprising a hoop defining a sheltered protected space, the lower end of the hoop being secured to the generally annular base that is intended to be mounted around the neck of a pressurized fluid cylinder. The cap is characterized in that the hoop comprises a draw-formed metal sheet. The invention also relates to the corresponding method.

A transport means (N) includes at least one lower support (1) on which at least two cylinders, in which a material which can be a compressed gas is stored, are placed by being stacked on the top of one another; at least one body (3) having one end connected to said lower support (1); at least one first steering element (2a) disposed on the body (3) for steering the cylinders during transport, at least two motion elements (4) connected to said body (3) for providing the movement of the transport means (N), the transport means (N) including at least one thrust mechanism which allows the topmost cylinder to move closer toward the lower support (1) such that the cylinders stacked on the top of one another do not come apart during transport.

A gas cylinder monitoring system is disclosed having a gas cylinder for receiving and distributing gas contained therein, a first monitoring system associated with the gas cylinder operable to monitor data associated with the gas cylinder and having a transmitter operable to broadcast the data at a controlled time and/or time interval in a discrete advertisement package, and a second monitoring system associated with one or more locations in which the first monitoring system may reside and having a receiver operable in a first mode to receive the advertisement package broadcast from the first monitoring system when the second monitoring system is within range of the first monitoring system

A method of distributing liquefied petroleum gas is described. The method comprises receiving payment for a predetermined amount of liquefied petroleum gas, transmitting an instruction to a valve to distribute liquefied petroleum gas monitoring, by a metering device, an amount of liquefied petroleum gas distributed determining, by the metering device, that the amount of distributed liquefied petroleum gas has reached a threshold amount, wherein the threshold amount is based, at least in part, on the predetermined amount, and responsive to determining that the amount of distributed liquefied petroleum gas has reached the threshold amount, transmitting an instruction to the valve to cease distribution of the liquefied petroleum gas.