L'air Liquide, Soci&#xe9;t&#xe9; Anonyme Pour L'etude Et L'exploitation Des Proc&#xe9;d&#xe9;s Georges Claude

Alessandro Moretti

Philippe Pisot

Renaud Ligonesche

Gilles Cannet

Arnaud Denis

Maxime Dupont

The invention relates to a pressurized gas dispensing device such as a tap, which includes a first end, to be placed in the opening of a pressurized gas storage tank, and a second end, including a connection interface selectively connectable to a device for controlling the filling and/or withdrawal of gas from the tank, the dispensing device including an internal gas circuit having an upstream end connecting inside the tank and a downstream end to be connected to said filling and/or withdrawal control device, the internal circuit including in series, upstream to downstream, a pressure regulator and a downstream insulation valve, the portion of the internal circuit located between the pressure regulator and the downstream insulation valve defining a so-called low-pressure chamber, the dispensing device; being characterized in that the connection interface includes at least one safety lock selectively movable between a first rest position, wherein the lock shapes the connection interface into a first configuration connectable to said combined filling and/or withdrawal control device, and a second active position, wherein the lock shapes the connection interface into a second configuration preventing connection to a combined filling and/or withdrawal control device, the safety lock being subject to the pressure in the so-called low-pressure chamber directly and/or via an intermediate transmission member such as a movable piston, the safety lock being moved to the active position thereof by the pressure in the low-pressure chamber when the pressure in the low-pressure chamber is greater than a predetermined threshold.

Pressurized gas dispensing device, assembly including such a device and a control device, and container provided with such a dispensing device

The invention relates to a gas filling and dispensing device that includes a body to be provided in the opening of a pressurized gas storage tank, a gas tapping circuit extending between a first upstream end to be connected to the inside of the tank and a second downstream end to be connected to a gas user, a filling duct having a first upstream end to be connected to the inside of the tank and a second downstream end to be connected to a filling member, said filling duct including at least one portion distinct from the tapping circuit, and the filling duct including a first valve, characterized in that the filling duct includes a second isolation valve arranged in series with the first valve.

Gas filling and dispensing device, and filling method

The invention relates to a gas filling and dispensing device that comprises a body to be positioned in the opening of a pressurized gas storage tank, a gas-tapping circuit extending between a first upstream end to be connected to the inside of the tank and a second downstream end to be connected to a gas user, wherein the tapping circuit includes a first insulation valve, the device further including a safety valve subjected to the tank pressure for blocking or selectively opening a passage for the gas from the tank towards a discharge area based on the temperature and/or pressure of the gas in the tank relative to at least one predetermined threshold, characterized in that the discharge area of the safety valve is located upstream from the first insulation valve.

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Brescia, Italy

Alessandro Moretti