Importance

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Abstract

A process for testing seal quality and height of flexible packages in accordance with the invention includes the following steps. Positioning a package to be tested at a test station. Initially moving a loading device into contact with the flexible package in a direction which applies an increasing load to a fluid within the package with the load applied to the package being sensed with a sensing device. Moving the loading device an initial distance in the direction which causes the sensed load to equal a set load. Defining as a reference position of the loading device an actual position of the loading device when the set load is sensed by the sensing device. Stopping movement of the loading device when the set load has been sensed by the sensing device for a time interval sufficient to permit the package to expand at the test station which drops the load sensed by the sensing device below the set load. Moving the loading device an additional distance from the reference position in the same previously defined direction to further decrease the height of the package where the set load is applied to the package. Accepting the package if the movement of the loading device the additional distance from the reference position causes the load sensed by the sensing device to at least equal the set load and the additional distance of movement from the reference position falls within a set range defining an acceptable minimum and maximum height of the package.

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First Claim