US 8,662,751 B2 · 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:

two opposite side walls joined along a common connection portion and each facing a compartment, the compartment being configured to be filled with liquid foodstuffs, and
a duct defined by internal surfaces of said two opposite side walls and the connection portion, said duct forming a handle portion defined by external surfaces of said two opposite side walls and the connection portion,
the duct being 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.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application

12/203,017Filed 2 Sep 2008 · division

Priority

SE 03026332 Oct 2003

Published

US 2008/0314898 A125 Dec 2008

Granted

4 Mar 2014

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.…:…

Family

PCT/SE2004/001386Parent of this division · filed 29 Sep 2004

US 2008/0314898 A1Pre-grant publication · published 25 Dec 2008

Application10/572,553Parent of this division

US 7,654,063 B2Parent of this division

US 2007/0068118 A1Published application

US 8,662,751 B2This patent

From the US filing history. Foreign family members aren’t listed.

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