Ecolean Ab

Eco Lean Research & Development A/s

Eco Lean Reasearch & Development A/s

Stefan Forss

Per Gustafsson

Bengt Jönsson

Lennart Friberg

Rikard WIRÈN

The invention relates to a method and a device for gas filling and sealing of a duct intended to be filled with gas and positioned in a container of a collapsible type. The duct is defined by two opposite side walls which are joined along a connecting portion and comprises an inlet arranged in one of the side walls. A part of the container that comprises the inlet is clamped between an abutment and a gas module which is axially movable towards the abutment. Clamping occurs in such a manner that one off the two side walls included in the duct is allowed, in response to a gas flow supplied from the gas module and entering the duct through said inlet, to bulge to form a free passage into the duct for filling the same with gas. After completion of the gas filling, the duct is sealed. The invention also relates to a container blank having a duct which is specially developed for the method and the device.

Method and device for gas filling and sealing of a duct intended to be filled with gas and positioned in a container of a collapsible type, and container blank comprising such a duct

The invention relates to a method and a device for gas filling and sealing of a duct intended to be filled with gas and positioned in a container of a collapsible type. The duct is defined by two opposite side walls which are joined along a connecting portion and comprises an inlet arranged in one of the side walls. A part of the container that comprises the inlet is clamped between an abutment and a gas module which is axially movable towards the abutment. Clamping occurs in such a manner that one of the two side walls included in the duct is allowed, in response to a gas flow supplied from the gas module and entering the duct through said inlet, to bulge to form a free passage into the duct for filling the same with gas. After completion of the gas filling, the duct is sealed. The invention also relates to a container blank having a duct which is specially developed for the method and the device.

The invention relates to a method and a device () for gas filling and sealing of a duct () intended to be filled with gas and positioned in a container () of a collapsible type. The duct () is defined by two opposite side walls () which are joined along a connecting portion () and comprises an inlet () arranged in one of the side walls (). A part of the container () that comprises the inlet () is clamped between an abutment () and a gas module () which is axially movable towards the abutment (). Clamping occurs in such a manner that one of the two side walls () included in the duct () is allowed, in response to a gas flow supplied from the gas module () and entering the duct () through said inlet (), to bulge to form a free passage into the duct () for filling the same with gas. After completion of the gas filling, the duct () is sealed. The invention also relates to a container blank () having a duct () which is specially developed for the method and the device ().

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Helsingborg, Sweden

Stefan Forss