US 2008/0314898 A1 · 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

Abstract

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.

Claims3

Dependent claims

A container blank for a collapsible container, the container blank comprising:

a duct defined by two opposite side walls joined along a common connection portion, the duct be configured to be filled with, gas, the duct including:
a first segment configured to provide a geometry in the container after gas filling;
a second segment adjoining the first segment, said second segment having a substantially smaller cross-sectional area than a cross-sectional area of the first segment;
and
a third segment adjoining the second segment, the third segment being configured to provide an inlet to the duct.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/203,017Filed 2 Sep 2008

Priority

SE 0302633-32 Oct 2003

Published

25 Dec 2008

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

B65D 75/563
Handles or other suspension means: integral handles or suspension means
B31B 70/008
Making flexible containers, e.g. envelopes or bags: stiffening or reinforcing
B31B 70/872
Forming integral handles or mounting separate handles: forming integral handles on bags
B65D 75/008
Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g.…:…

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

Life of this patent

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

Life of this patent

Abstract

Claims3