Patent ID: 7665274

Claim:
A device for gas filling of a duct in a container of a collapsible type, said duct being defined by a first and a second side wall of the container, the side walls being joined along a common connecting portion, and said duct comprising an inlet arranged in the first side wall, said device comprising: an abutment; and a gas module with an outlet and a clamping means, the outlet being arranged in a surface of the gas module facing the abutment, and the clamping means being arranged outside the outlet, wherein the clamping means is applicable to the abutment for clamping the container, wherein the outlet, in connection with the clamping of the container, is applicable to said inlet for supply of gas to the duct of the container, wherein the abutment has a recess to allow bulging of the second side wall to provide a passage into the duct intended to be filled with gas, when said outlet, in connection with the clamping of the container, is applied to said inlet for supply of gas to the duct of the container, and wherein a groove is formed in said surface of the gas module, the groove surrounding the outlet and being positioned radially inside said clamping means, said groove being arranged to prevent, when supplying gas to the duct intended to be filled with gas, build-up of a pressure above atmospheric on the side, facing the gas module, of said first side wall surrounding said inlet.