Process and device for the tightness check of a container
AssigneeIWK Verpackungstechnik GmbH
InventorFabian Hesse
Life of this patent
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Abstract
A container has a tube-like or tubular shell, which is sealed against the surrounding atmosphere and has a weld seam at at least one end. For checking the tightness of the container the internal pressure in an interior space of the container is increased by means of external action and the thereby ensuing deformation of the weld seam is detected. Provisions are made in this connection for the weld seam to be clamped between clamping elements before increasing the internal pressure only in a partial area of its surface, which has a distance from the end of the weld seam facing the interior space.
Claims14
A process for a tightness check of a container which has a tube-like or tubular shell which is sealed against a surrounding atmosphere and has a weld seam at at least one end, the process comprising:
- increasing an internal pressure in an interior space of the container by external action and detecting ensuing deformation of the weld seam, wherein the weld seam is clamped between clamping elements before increasing the internal pressure only in a partial area of a surface of the weld seam, the surface having a distance from the end of the weld seam facing an interior space of the container.
A device for a tightness check of a container, which has a tube-like or tubular shell which is sealed against a surrounding atmosphere and the container has a weld seam at at least one end, the device comprising:
- a first clamping system, by means of which the weld seam can be clamped in a partial area of a surface of the weld seam;
- a second clamping system, by means of which an external force of pressure can be applied to the container for increasing an internal pressure in an interior space of the containers;
- and
- a sensor device, by means of which a thickness of the weld seam can be detected.
Dependencies are inferred from the claim text.