Trapped air monitor for a refrigerant recovery unit
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United States of America Patent
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-
Aug 16, 1994
Grant Date -
N/A
app pub date -
Feb 19, 1993
filing date -
Feb 19, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A monitor used in refrigerant recovery systems to detect and reduce non-condensable vapor in a storage container. The monitor has a sampling reservoir that draws a sample of liquid refrigerant contained in a storage container. The sample of liquid refrigerant is allowed to reach equilibrium, providing a saturated vapor pressure, which is compared to the vapor pressure in an upper portion of the container. The difference in pressure between the sampling reservoir and the container indicating when the container should be exhausted.
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