Process and apparatus for monitoring the hermeticity of filled c

Measuring and testing – With fluid pressure – Leakage

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73 52, G01M 336

Patent

active

047304820

ABSTRACT:
The invention relates to a process and an apparatus for monitoring the hermeticity of filled containers closed by sealed-on or welded-on covers, or the like. The air or gas cushion present between the cover and the material with which the container is filled, is heated, and the change caused in the position of the cover, by the resulting increase in the volume of air or gas, is monitored, after which the containers which have been indicated as having missing or faulty covers, are removed.

REFERENCES:
patent: 2512910 (1950-06-01), Bell
patent: 3729984 (1973-05-01), Waldherr
patent: 4326408 (1982-04-01), Kanoh

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