Shelf life testing unit

Details Shelf life testing unit Shelf life testing unit

2005-11-15

2005-11-15

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Fluid pressure gauge

C053S432000

Reexamination Certificate

active

06964197

ABSTRACT:
A testing apparatus for testing the level of retained gas at elevated pressure in plastic containers for carbonated beverages includes a manifold assembly for engaging the mouth of a test set of the containers. The apparatus additionally includes a gas supply for supplying a desired quantity of a selected gas to each container, the gas preferably helium. The apparatus further includes pressure measuring units for measuring the pressure in each container, and a data collection system coupled to the pressure measuring units for periodically collecting pressure data along with ambient temperature data as a function of time. The collected data can be analyzed to determine shelf life of the containers. Using helium, the shelf life determination can be accomplished in about 1/7ththe time of conventional shelf life tests.

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