Method of detecting occlusions in a solution pumping system
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United States of America Patent
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Mar 8, 1994
Grant Date -
N/A
app pub date -
Jan 29, 1993
filing date -
Jan 29, 1993
priority date (Note) -
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Abstract
A method of detecting occlusions in a solution pumping system includes monitoring and analyzing pressures within the system during selected portions of a pumping cycle. The pumping system of the illustrated embodiment includes a positive displacement pump operated by a reciprocable pump piston, with analysis of pressures within the system identifying those conditions which reflect the presence of an occlusion either upstream or downstream of the positive displacement pump. A suitable signal or alarm can then be activated to alert operating personnel.
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