Method and apparatus for inspecting leakage of container

Details Method and apparatus for inspecting leakage of container Method and apparatus for inspecting leakage of container

2005-10-18

2005-10-18

Bui, Bryan (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Mechanical measurement system

C073S023200, C073S040000, C422S186190

Reexamination Certificate

active

06957155

ABSTRACT:
A method for inspecting leakage of a container includes a differential pressure generation step of generating a differential pressure between the inside and the outside of a container; an ozone gas addition step of adding ozone gas to a higher pressure side of the inside and the outside; an ozone concentration detection step of measuring an ozone concentration of a lower pressure side of the inside and the outside; and a leakage determination step of determining presence of the leakage of the container based on a change in the ozone concentration.

REFERENCES:
patent: 5069880 (1991-12-01), Karlson
patent: 5604298 (1997-02-01), Dosoretz et al.
patent: 5929324 (1999-07-01), Hu et al.

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