pressure/vacuum generator
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United States of America Patent
Stats
-
May 1, 2001
Grant Date -
N/A
app pub date -
Mar 22, 1999
filing date -
Mar 22, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pressure/vacuum generator is established by coupling the pressure port of a vacuum generator to an air pressure source while coupling a valve in fluid communication with the exhaust port of the vacuum generator. When the valve is in a normally open condition (i.e, the exhaust vented to atmosphere), the vacuum port of the pressure/vacuum generator generates a vacuum. When the valve is closed, thereby closing off the exhaust port, the vacuum port becomes a pressure port. Thus, this pressure/vacuum generator can be used in any number of fluid (liquid and gas) systems (e.g., fluid recovery system, fluid transfer system, etc.)that require both a pressure source and a vacuum source while using a minimum number of components.
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