Patent ID: 8382904

Claim:
A gas feed installation for a machine for depositing barrier layers on the internal wall of containers by means of a cold plasma, comprising: at least a first part comprising a tank ( 1 ) filled with a liquid component, which tank ( 1 ) is temperature-regulated and pressure-regulated in order to vaporize the liquid component so as to make it pass into the gas phase, which first part is connected via at least one gas line to the rest of the installation; at least a second part, connected via at least one gas line to the first part and comprising gas mixing means (M, M 1 , M 2 ) which cooperate with a steady-flow means (E) so as to inject at least one gas mixture; and at least one injector ( 44 ) connected to said steady-flow means (E) and intended to be inserted into a container ( 42 ) to be treated, when the latter is placed in a vacuum chamber ( 40 ), wherein each gas line connected to the tank ( 1 ) is controlled by a regulating flowmeter ( 21 , 29 ) and the downstream outlets of the flowmeters ( 21 , 29 ) are short-circuited to the tank ( 1 ) on demand using controllable valves ( 17 , 37 ) so as to rapidly bring the tank to an operating pressure.