US 7,891,160 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 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.

Claims15

Dependent claims

A device for gas filling a duct intended to be filled with gas and positioned in a container of a collapsible type, said duct being defined by two opposite side walls, which are joined along a common connecting portion, and comprising an inlet arranged through one of the side walls, the device comprising:

an abutment;
and
a gas module which is axially applicable to the abutment for abutment against a part of said one of the side walls of the container and the inlet arranged therein and for pressing the other of the side walls against the abutment, the gas module being arranged to fill the duct with gas through the inlet,
wherein the abutment includes a recess formed in a side of the abutment that is facing the container for allowing a portion of at least one side wall forming the duct to bulge during the filling of the duct with gas in order to form a free passage into the duct.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

12/485,813Filed 16 Jun 2009 · continuation

Priority

SE 03026332 Oct 2003

Published

US 2009/0249745 A18 Oct 2009

Granted

22 Feb 2011

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 continuation · filed 29 Sep 2004

US 2009/0249745 A1Pre-grant publication · published 8 Oct 2009

Application10/572,553Parent of this continuation

US 7,654,063 B2Parent of this continuation

US 2007/0068118 A1Published application

US 7,891,160 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

Claims15