Valve assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 21, 2010
Issued Date -
N/A
app pub date -
Oct 13, 2006
filing date -
Oct 13, 2006
priority date (Note) -
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Abstract
The present invention relates to a valve having a first assembly cooperating with a second assembly to create a seal, wherein the first assembly opens before the second assembly opens and closes after the second assembly closes. The invention also relates to a valve wherein the pressure required to open the second assembly is greater than the pressure required to open the first assembly.
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