Method and apparatus for manufacturing a double bag
AssigneePlümat Plate & Lübeck GmbH & Co.
InventorSven-David Plate
Life of this patent
Estimating the term…
Abstract
A method and apparatus for manufacturing a double bag (20) are disclosed. The method comprises placing an inner bag (30) in an outer bag (40) through an open top end (42), inserting a gas feeding tube (50) between through the open top end (42), feeding a head space (44) between the inner bag (30) and the outer bag (40) with an inert gas through the gas feeding tube (50), extracting the gas feeding tube (50), and sealing the top end (42). A gas box (80) surrounds the open top end (42) to reduce the risk of oxygen entering the head space (44).
Claims15
Method for manufacturing a double bag having an inner bag in an outer bag with an open top end, the method comprising:
- inserting a gas feeding tube through the open top end;
- placing a gas box over the open top end;
- feeding a head space between the inner bag and the outer bag with an inert gas through the gas feeding tube;
- enclosing the double bag with a chamber and thereby controlling the amount of the inert gas in the head space;
- extracting the gas feeding tube;
- and
- sealing the outer bag.
An apparatus for the manufacture of a double bag comprising:
- a placement device for placing an inner bag in an outer bag in a bag sealing machine;
- a gas box for enclosing an open top end of the outer bag;
- a welding device for sealing top edges of the outer bag;
- a gas feeding device for filing a head space between the inner bag and the outer bag with an inert gas;
- and
- a chamber for enclosing the double bag.
Dependencies are inferred from the claim text.