Method for filling a plastic container
AssigneeAlpla Werke Alwin Lehner GmbH & Co. KG
InventorsRobert Siegl, Oswald Valtiner
Life of this patent
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Abstract
A method for filling a plastics container, wherein an excess pressure is built up in the filled and closed container. The method includes the following method steps: filling the plastics container with a liquid, and closing the filled plastics container. In a deformation step, the container, prior to being closed, is deformed by a mechanical force such that the cross-sectional shape of the container is changed and its volume is thereby increased. In a pressure relief step, the mechanical force is removed once the container has been closed, as a result of which the volume contraction causes an excess pressure to build up in the container, and the filling height of the liquid increases.
Claims8
A method for filling a plastics container, comprising the following method steps:
- filling the plastics container with a liquid, and
- closing the filled plastics container,
- wherein
- in a deformation step, the container, prior to being closed, is deformed by a mechanical force such that the cross-sectional shape of the container is changed and its volume is thereby increased and
- in a pressure relief step, the mechanical force is removed once the container has been closed, as a result of which the volume contraction causes an excess pressure to build up in the container, and the filling height of the liquid to rise.
Dependencies are inferred from the claim text.