Dynamic filling with high-pressure gas mixtures, particularly an N.sub.2O/O.sub.2 mixture
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United States of America Patent
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Sep 11, 2007
Grant Date -
Jul 21, 2005
app pub date -
Dec 16, 2004
filing date -
Dec 17, 2003
priority date (Note) -
Expired
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Abstract
A method of manufacturing a gas mixture of at least two components. Oxygen, nitrogen, helium, carbon dioxide, nitrous oxide, and carbon monoxide are all suitable for use as components in this method. Defined amounts of the components are dynamically mixed in order to obtain a first gas mixture at a first pressure less than 200 bar. The first gas mixture contains an intermediate amount of the second component which is less than the amount desired in the final gas mixture. A first component is then added to the first gas mixture to concomitantly dilute the second component. The addition of the first component is stopped when the pressure of the diluted gas mixture reaches a second pressure greater than both the first pressure and 170 bar, and when the diluted gas mixture contains the desired final proportion of the second component.
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