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US 5,819,507 AGranted
Method of filling a packaging container
AssigneeTetra Laval Holdings & Finance S.A.
InventorsMasamichi Kaneko, Hidetoshi Konno, Junichi Satoyoshi
Life of this patent
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Abstract
In a method of filling a packaging container, a liquid is charged in a container through an opening in a top end of the container to a first level below the top end of the container. The container has a deformable portion in a wall thereof so that an inside volume of the container can be adjusted. A lid is sealed on the opening, and the deformable portion of the container is deformed to elevate the liquid above the first level.
Claims14
A method of filling a packaging container comprising the steps of:
- charging a liquid in a container through an opening at a top end of the container to a first level below the top end of the container, the container having a wall portion that is deformable and restorable so that the container is able to assume a deformed condition in which the wall portion is deformed and is restorable towards an undeformed condition in which the wall portion is undeformed to permit adjustment of an inside volume of the container;
- deforming the deformable wall portion of the container to elevate the liquid above the first level;
- and
- sealing a lid on the opening of the container while the deformable wall portion is deformed, with a negative pressure being created in the container after the lid is sealed to the container.
1 more element
A method of filling a packaging container comprising the steps of:
- charging a liquid in a container through an opening at a top end of the container to a first level below the top end of the container;
- deforming a deformable and restorable portion of a lid to move the deformable portion of the lid towards the first level;
- and
- sealing the lid to the container at the opening while the deformable and restorable portion of the lid is deformed to cover the opening in the container, with a negative pressure being created within the container after the lid is sealed to the container.
1 more element
Dependencies are inferred from the claim text.