Measuring and testing – With fluid pressure – Leakage
Patent
1993-08-26
1994-08-02
Tokar, Michael J.
Measuring and testing
With fluid pressure
Leakage
73 52, G01M 334
Patent
active
053334922
ABSTRACT:
A process and an apparatus for leak testing a package. The method includes placing a sheet-like and airtight wrapper around a part of the package liable to leakage, e.g. a closing element. Applying a higher pressure to the outside than to the inside of the wrapper for causing the wrapper to fit closely around the part of the package and for hermetically sealing the wrapper from a part of the package outside the part to be tested. Sealing the measuring space between the enveloped part of the package and the wrapper pressed against it from the surrounding space by applying a measuring pressure in the closed measuring space which is different from the pressure then prevailing in the package, and for measuring the change of pressure in the closed measuring space for a determined measuring time.
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Mah Raymond Y.
Product Suppliers AG
Tokar Michael J.
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