Apparatus for testing bottles for the presence of contamination

Details Apparatus for testing bottles for the presence of contamination Apparatus for testing bottles for the presence of contamination

1995-06-07

1996-11-05

Raevis, Robert

Measuring and testing

Inspecting

B07C 502

Patent

active

055719783

ABSTRACT:
To detect contamination in used PET returnable bottles, they are fed to a first testing station which takes a gas sample from each bottle. This first testing station tests for the presence of heavy contamination. Heavily contaminated bottles are identified as dirty. The bottles are then fed to a second testing station which takes gas samples from the clean bottles and tests them for contamination with a lower detection threshold. Bottles detected here as contaminated are removed, as are the bottles which fail the first test. The two-stage process allows testing with greater sensitivity while maintaining a high bottle throughput.

REFERENCES:
patent: 5067616 (1991-11-01), Plester et al.

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