Process and device for testing the tightness of a flexible plast

Details Process and device for testing the tightness of a flexible plast Process and device for testing the tightness of a flexible plast

1990-03-01

1991-06-25

Williams, Hezron E.

Measuring and testing

With fluid pressure

Dimension, shape, or size

73 492, G01M 336

Patent

active

050256572

ABSTRACT:
In a process for testing the tightness of a flexible collapsible container which in condition of use is sealed by means of a screw cap screwed on a spout, the container is evacuated after its manufacture, tightly sealed and subsequently subjected to atmospheric pressure. If the container is tight, it will remain its shape caused by the vacuum. The device for the application of this process consists essentially of a suction bell on which the container is placed and features a rotor unit with the aid of which a cap can be screwed on the container. The invention enables as such a simple and dependable testing of collapsible plastic containers, but also of containers of stable form as well as closures, specifically screw caps.

REFERENCES:
patent: 3762213 (1973-10-01), Nowicki
patent: 4295566 (1981-10-01), Vincek

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