Apparatus, method and system for determining the integrity of se

Details Apparatus, method and system for determining the integrity of se Apparatus, method and system for determining the integrity of se

1979-12-10

1981-12-22

Goldberg, Gerald

Measuring and testing

Testing sealed receptacle

33172R, 209529, 209597, G01M 300, G01B 502

Patent

active

043064485

ABSTRACT:
A method, apparatus and system for testing the integrity of a container sealed by means of a closure comprising a resilient sealing element and a cup-like cap having a top and a depending skirt compressing the sealing element over the discharge opening in the container. The invention consists in measuring the change in thickness of the resilient sealing element resulting from compression of the sealing element on the container and comparing the change in thickness or a value determined therefrom to a predetermined standard known to indicate sufficient compression to provide an acceptable seal. Resilient sealing element thickness is measured by apparatus including a sensing head having an anvil engageable with the closure mounted on an actuator member of a dial indicator. A face of the anvil engages the top of the cap along a circular line adjacent of the corner radius at its juncture to the top of the cap. With the indicator in a set, fixed position, the height of the container closure assembly can be measured and the change in thickness of the sealing element determined by simply noting the difference in the pre- and post- sealing position of the dial indicator.

REFERENCES:
patent: 2512134 (1950-06-01), Baule
patent: 3371781 (1968-03-01), Armbruster et al.
patent: 3416360 (1968-12-01), Ochs
patent: 3586165 (1971-06-01), Keinanen
patent: 3633742 (1972-01-01), Melton

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