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 opening-side flange may include a connecting surface including an inclined surface, a corner part, and an annular groove on a bottom-face side. A conical surface part of the inclined surface may be a conical surface of a truncated cone, and may be inclined such that a radially outer end thereof approaches an opening side. The corner part may be a corner formed between the inclined surface and the annular groove, and may function as a sealing surface with the liner. The annular groove may be a part that connects the inclined surface to an outer surface part, and may be a part that is hollowed toward the opening side relative to the inclined surface.

A pressure recipient or vessel (1) has a polymeric impermeable liner (2) and a reinforcing layer (4) of a composite material externally formed around the impermeable liner (2), as well as at least one boss (5) coupled to the impermeable liner (2) and to the reinforcing layer (4) to provide an opening (6) of the pressure vessel (1). The impermeable liner (2) is joined to the boss (5) by a co-molded polymer-metal annular connection zone (7).

A structural component with at least two side members has a support structure that includes a partition with multiple curved portions forming cells. The partition connects to the side members and extends between the side members at least partially along straight lines. The partition may extend along one or more straight lines from one side member to the other. One structural component is a container with a wall about the internal support structure. The container cells may be formed with a core structure. The core can include a permeable storage material and may be retained after formation, or may be removed. In some cases the container wall has generally planar surfaces, which may include surface undulations. Core structures are also provided for forming structural components. Formation can include casting a material about a core structure within a mold to form a partition extending between two or more sides.

A pressure vessel assembly includes a vessel having a wall defining a chamber and a circumferentially continuous lip projecting into the chamber from the wall. The lip defines a through-bore that is in fluid communication with the chamber. A nozzle assembly of the pressure vessel assembly includes a tube projecting at least in-part into the through-bore, and an o-ring disposed between, and in sealing contact with, the tube and the lip.

A Venturi filling system having a first filling coupler configured to be coupled to a first set of fittings disposed at a first tank end of a tank; a second filling coupler configured to be coupled to a second set of fittings disposed at a second tank end of the tank; and a Venturi assembly that includes: a Venturi mixing chamber, the Venturi mixing chamber communicating with the first filling coupler; a Venturi nozzle configured to introduce a first flow of fluid from a fluid source to the Venturi mixing chamber of the Venturi assembly; and an suction inlet communicating with the second filling coupler and coupled with the Venturi chamber and configured to receive a second flow of fluid originates from the second filling coupler such that the second flow of fluid flows into the Venturi chamber and mixes with the first fluid flow within the Venturi mixing chamber.

A composite pressure vessel assembly includes a first vessel having a first inner layer and a second vessel having a second inner layer. An outer layer of the assembly is in contact with and substantially envelopes the first and second inner layers. A junction of the assembly has outer boundaries defined by segments of the first inner layer, the second inner layer and the outer layer. A cross-layered component of the assembly is disposed in the junction, the first and second inner layers and the outer layer for adding strength to the junction and restricting delamination.

A pressure vessel configured to store a pressurized fluid is provided including a plurality of lobes. Each lobe includes at least one vertically arranged interior wall. The plurality of lobes are positioned in a side by side configuration such that a first interior wall of a first lobe is positioned adjacent a second interior wall of a second adjacent lobe. The first interior wall and the second interior wall are configured to contact one another at a first point of tangency. A first tangent intersects the first lobe at the first point of tangency and a second tangent intersects the second lobe at the first point of tangency. The first tangent and the second tangent are separated by about 120 degrees.

The invention relates to a pressure vessel system comprising a pressure vessel for storing a gas under pressure, at a potential leakage interface of the pressure vessel, one or more gas sensitive parts configured to undergo a modification when the gas passes along the potential leakage interface; said leakage interface being an interface within the pressure vessel; and one or more detection modules configured to detect a modification of the one or more gas sensitive parts. The invention also relates to a connection assembly comprising a first connection part and a second connection part, said first and second connection part being configured to realize a gas tight connection; one or more gas sensitive parts arranged at a connection interface between the first connection part and the second connection part, and one or more detection modules configured to detect a modification of the one or more gas sensitive parts.

The invention relates to a method for producing pressure vessels, including pressure accumulators, such as hydraulic accumulators and parts thereof (24), characterized in that they are at least partially produced by means of a 3D printing method.