Vacuum actuated fluid delivery
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United States of America Patent
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Jun 7, 2016
Grant Date -
Mar 24, 2011
app pub date -
Aug 19, 2009
filing date -
Aug 19, 2008
priority date (Note) -
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Abstract
The present invention relates to fluid delivery systems comprising valve assemblies that provide for a more stable and reliable delivery system for a fluid, for example a gaseous fluid, from a tank by utilizing vacuum to open the normally closed valves assemblies. The present invention also relates to methods of delivering a fluid from a tank, assembling and operating the valves assemblies, as well as retrofitting existing tanks with such systems.
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