Deaerator system having positive pressure indicating means
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United States of America Patent
Stats
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Nov 17, 1981
Grant Date -
N/A
app pub date -
Apr 7, 1980
filing date -
Apr 7, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is disclosed an improved dearator system for purging air from water. The disclosed system includes a container for containing the water, cooling means within the container for cooling the water to force air therefrom, and means for introducing carbon dioxide gas into the container to establish a positive pressure therein. The system also includes a positive pressure indicator means for indicating when the positive pressure within the container is reached. The indicator includes a housing having a bore in fluid communication with the container, a seat within the bore, and a ball within the bore. The ball is viewable through the housing and is arranged to disengage from the seat in response to positive pressure within the container to provide a readily discernible indication of positive pressure therein. The system also includes a check valve functionally interposed between the container and the positive pressure indicator for intercepting liquid travelling towards the indicator housing to thereby inhibit damage to the housing.
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