Measuring and testing – With fluid pressure – Leakage
Patent
1992-07-17
1994-05-10
Williams, Hezron E.
Measuring and testing
With fluid pressure
Leakage
73 46, 73 491, G01M 304
Patent
active
053097521
ABSTRACT:
Apparatus and method for measuring a rate of leakage from a closed vessel enclosed in a container. Air is expelled from the container and a charge of helium-free gas is introduced. The preferred container is comprised of flexible sheets with mating edges sealed together. The flexible container is collapsed when air is expelled, and then limply charged with a known volume of helium-free gas. The vessel is pressurized with helium, the rate of accumulation of which is measured in the container gas to determine the leakage from the vessel.
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Beckinghausen, Jr. Erwin S.
Pritchard Francis E.
Francies Valerie
Kent Peter
Pak Chung K.
Praxair Technology Inc.
Williams Hezron E.
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